123431510001 has 8 divisors (see below), whose sum is σ = 164582306464. Its totient is φ = 82284193440.

The previous prime is 123431509987. The next prime is 123431510051. The reversal of 123431510001 is 100015134321.

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

It is not a de Polignac number, because 123431510001 - 2⁹ = 123431509489 is a prime.

It is a super-2 number, since 2×123431510001² (a number of 23 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 123431510001.

It is not an unprimeable number, because it can be changed into a prime (123431510051) 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, 786055 + ... + 929916.

It is an arithmetic number, because the mean of its divisors is an integer number (20572788308).

Almost surely, 2^123431510001 is an apocalyptic number.

It is an amenable number.

123431510001 is a deficient number, since it is larger than the sum of its proper divisors (41150796463).

123431510001 is a wasteful number, since it uses less digits than its factorization.

123431510001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739951.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 123431510001 its reverse (100015134321), we get a palindrome (223446644322).

The spelling of 123431510001 in words is "one hundred twenty-three billion, four hundred thirty-one million, five hundred ten thousand, one".