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1312110223031 = 9714201321661
BaseRepresentation
bin10011000101111111110…
…111010001111010110111
311122102210012212112011002
4103011333313101322313
5132444200204114111
62442435231433515
7163540212606146
oct23057767217267
94572705775132
101312110223031
11466510017a83
1219236708589b
139696804199a
1447713a9975d
15241e71b963b
hex1317fdd1eb7

1312110223031 has 8 divisors (see below), whose sum is σ = 1313778259728. Its totient is φ = 1310442840000.

The previous prime is 1312110223007. The next prime is 1312110223043. The reversal of 1312110223031 is 1303220112131.

It is a happy number.

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 1312110223031 - 26 = 1312110222967 is a prime.

It is a super-2 number, since 2×13121102230312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312110222994 and 1312110223012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312110223001) 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, 3918341 + ... + 4240001.

It is an arithmetic number, because the mean of its divisors is an integer number (164222282466).

Almost surely, 21312110223031 is an apocalyptic number.

1312110223031 is a deficient number, since it is larger than the sum of its proper divisors (1668036697).

1312110223031 is an equidigital number, since it uses as much as digits as its factorization.

1312110223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326833.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1312110223031 its reverse (1303220112131), we get a palindrome (2615330335162).

The spelling of 1312110223031 in words is "one trillion, three hundred twelve billion, one hundred ten million, two hundred twenty-three thousand, thirty-one".

Divisors: 1 971 4201 321661 4079171 312332831 1351297861 1312110223031