123427026723 has 64 divisors (see below), whose sum is σ = 221397120000. Its totient is φ = 59068776960.

The previous prime is 123427026703. The next prime is 123427026727. The reversal of 123427026723 is 327620724321.

It is not a de Polignac number, because 123427026723 - 2¹³ = 123427018531 is a prime.

It is a super-2 number, since 2×123427026723² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (123427026727) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1488153 + ... + 1568901.

It is an arithmetic number, because the mean of its divisors is an integer number (3459330000).

Almost surely, 2^123427026723 is an apocalyptic number.

123427026723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123427026723 is a deficient number, since it is larger than the sum of its proper divisors (97970093277).

123427026723 is a wasteful number, since it uses less digits than its factorization.

123427026723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81292.

The product of its (nonzero) digits is 169344, while the sum is 39.

The spelling of 123427026723 in words is "one hundred twenty-three billion, four hundred twenty-seven million, twenty-six thousand, seven hundred twenty-three".