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13132223323231 = 31599707212199
BaseRepresentation
bin1011111100011001010110…
…0000011001110001011111
31201111102120020000022000011
42333012111200121301133
53210124243132320411
643532505441144051
72523525510324565
oct277062540316137
951442506008004
1013132223323231
114203387789541
12158114302b027
1374349536950c
143358628bda35
1517b8ec7c2c21
hexbf195819c5f

13132223323231 has 8 divisors (see below), whose sum is σ = 13578474240000. Its totient is φ = 12687386832120.

The previous prime is 13132223323211. The next prime is 13132223323291. The reversal of 13132223323231 is 13232332223131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13132223323231 - 213 = 13132223315039 is a prime.

It is a super-2 number, since 2×131322233232312 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13132223323193 and 13132223323202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13132223323211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353587531 + ... + 353624668.

It is an arithmetic number, because the mean of its divisors is an integer number (1697309280000).

Almost surely, 213132223323231 is an apocalyptic number.

13132223323231 is a deficient number, since it is larger than the sum of its proper divisors (446250916769).

13132223323231 is an equidigital number, since it uses as much as digits as its factorization.

13132223323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707212829.

The product of its digits is 23328, while the sum is 31.

Adding to 13132223323231 its reverse (13232332223131), we get a palindrome (26364555546362).

The spelling of 13132223323231 in words is "thirteen trillion, one hundred thirty-two billion, two hundred twenty-three million, three hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 31 599 18569 707212199 21923578169 423620107201 13132223323231