123251269481 has 16 divisors (see below), whose sum is σ = 129499075200. Its totient is φ = 117078369408.

The previous prime is 123251269451. The next prime is 123251269489. The reversal of 123251269481 is 184962152321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123251269481 is a prime.

It is a super-3 number, since 3×123251269481³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123251269489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7535210 + ... + 7551548.

It is an arithmetic number, because the mean of its divisors is an integer number (8093692200).

Almost surely, 2^123251269481 is an apocalyptic number.

It is an amenable number.

123251269481 is a deficient number, since it is larger than the sum of its proper divisors (6247805719).

123251269481 is a wasteful number, since it uses less digits than its factorization.

123251269481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18608.

The product of its digits is 207360, while the sum is 44.

The spelling of 123251269481 in words is "one hundred twenty-three billion, two hundred fifty-one million, two hundred sixty-nine thousand, four hundred eighty-one".