123355454351031 has 24 divisors (see below), whose sum is σ = 203635883642880. Its totient is φ = 70488317777616.

The previous prime is 123355454351029. The next prime is 123355454351071. The reversal of 123355454351031 is 130153454553321.

123355454351031 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 5 + 54 + 54 + 3 + 510 + 31 = 666.

It is not a de Polignac number, because 123355454351031 - 2¹ = 123355454351029 is a prime.

It is a super-2 number, since 2×123355454351031² (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 (123355454351071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1677226 + ... + 15796328.

It is an arithmetic number, because the mean of its divisors is an integer number (8484828485120).

Almost surely, 2^{123355454351031} is an apocalyptic number.

123355454351031 is a deficient number, since it is larger than the sum of its proper divisors (80280429291849).

123355454351031 is a wasteful number, since it uses less digits than its factorization.

123355454351031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14257795 (or 14257792 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 123355454351031 in words is "one hundred twenty-three trillion, three hundred fifty-five billion, four hundred fifty-four million, three hundred fifty-one thousand, thirty-one".