123420131254 has 16 divisors (see below), whose sum is σ = 212324997888. Its totient is φ = 52707434472.

The previous prime is 123420131243. The next prime is 123420131309. The reversal of 123420131254 is 452131024321.

It is a super-2 number, since 2×123420131254² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15571522 + ... + 15579445.

It is an arithmetic number, because the mean of its divisors is an integer number (13270312368).

Almost surely, 2^123420131254 is an apocalyptic number.

123420131254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123420131254 is a deficient number, since it is larger than the sum of its proper divisors (88904866634).

123420131254 is a wasteful number, since it uses less digits than its factorization.

123420131254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31151259.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 123420131254 its reverse (452131024321), we get a palindrome (575551155575).

The spelling of 123420131254 in words is "one hundred twenty-three billion, four hundred twenty million, one hundred thirty-one thousand, two hundred fifty-four".