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131123230122331 = 7110603731741657
BaseRepresentation
bin11101110100000110000001…
…100011011010000101011011
3122012021020222100122112120201
4131310012001203122011123
5114141310333402403311
61142513102541403031
736422224610211256
oct3564060143320533
9565236870575521
10131123230122331
1138864060034a27
1212858688569477
135821b37cc2475
14245458093809d
151025c396639c1
hex7741818da15b

131123230122331 has 8 divisors (see below), whose sum is σ = 132970237926624. Its totient is φ = 129276227922240.

The previous prime is 131123230122281. The next prime is 131123230122359. The reversal of 131123230122331 is 133221032321131.

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 131123230122331 - 235 = 131088870383963 is a prime.

It is a super-2 number, since 2×1311232301223312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131123230122331.

It is not an unprimeable number, because it can be changed into a prime (131123230122431) 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, 74415655 + ... + 76157311.

It is an arithmetic number, because the mean of its divisors is an integer number (16621279740828).

Almost surely, 2131123230122331 is an apocalyptic number.

131123230122331 is a deficient number, since it is larger than the sum of its proper divisors (1847007804293).

131123230122331 is a wasteful number, since it uses less digits than its factorization.

131123230122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802101.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 131123230122331 its reverse (133221032321131), we get a palindrome (264344262443462).

The spelling of 131123230122331 in words is "one hundred thirty-one trillion, one hundred twenty-three billion, two hundred thirty million, one hundred twenty-two thousand, three hundred thirty-one".

Divisors: 1 71 1060373 1741657 75286483 123657647 1846806058061 131123230122331