123214113520 has 40 divisors (see below), whose sum is σ = 286714376784. Its totient is φ = 49244086272.

The previous prime is 123214113509. The next prime is 123214113599. The reversal of 123214113520 is 25311412321.

It is a tau number, because it is divible by the number of its divisors (40).

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, 553809 + ... + 743728.

Almost surely, 2^123214113520 is an apocalyptic number.

123214113520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123214113520 is an abundant number, since it is smaller than the sum of its proper divisors (163500263264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123214113520 is a wasteful number, since it uses less digits than its factorization.

123214113520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298737 (or 1298731 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 123214113520 its reverse (25311412321), we get a palindrome (148525525841).

The spelling of 123214113520 in words is "one hundred twenty-three billion, two hundred fourteen million, one hundred thirteen thousand, five hundred twenty".