123214172502 has 16 divisors (see below), whose sum is σ = 248868230832. Its totient is φ = 40664743200.

The previous prime is 123214172489. The next prime is 123214172513. The reversal of 123214172502 is 205271412321.

It is a super-2 number, since 2×123214172502² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123214172502.

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, 101661253 + ... + 101662464.

It is an arithmetic number, because the mean of its divisors is an integer number (15554264427).

Almost surely, 2^123214172502 is an apocalyptic number.

123214172502 is an abundant number, since it is smaller than the sum of its proper divisors (125654058330).

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

123214172502 is a wasteful number, since it uses less digits than its factorization.

123214172502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203323823.

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 123214172502 its reverse (205271412321), we get a palindrome (328485584823).

The spelling of 123214172502 in words is "one hundred twenty-three billion, two hundred fourteen million, one hundred seventy-two thousand, five hundred two".