155123510626231 has 8 divisors (see below), whose sum is σ = 177284137966880. Its totient is φ = 132962914741248.

The previous prime is 155123510626171. The next prime is 155123510626319. The reversal of 155123510626231 is 132626015321551.

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 155123510626231 - 2²⁵ = 155123477071799 is a prime.

It is a super-2 number, since 2×155123510626231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155123510623231) 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, 3871015 + ... + 18034183.

It is an arithmetic number, because the mean of its divisors is an integer number (22160517245860).

Almost surely, 2^{155123510626231} is an apocalyptic number.

155123510626231 is a deficient number, since it is larger than the sum of its proper divisors (22160627340649).

155123510626231 is a wasteful number, since it uses less digits than its factorization.

155123510626231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15727833.

The product of its (nonzero) digits is 324000, while the sum is 43.

Adding to 155123510626231 its reverse (132626015321551), we get a palindrome (287749525947782).

The spelling of 155123510626231 in words is "one hundred fifty-five trillion, one hundred twenty-three billion, five hundred ten million, six hundred twenty-six thousand, two hundred thirty-one".