123010202121 has 32 divisors (see below), whose sum is σ = 169264263168. Its totient is φ = 79419419520.

The previous prime is 123010202101. The next prime is 123010202123. The reversal of 123010202121 is 121202010321.

It is not a de Polignac number, because 123010202121 - 2²⁶ = 122943093257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123010202121.

It is not an unprimeable number, because it can be changed into a prime (123010202123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24207301 + ... + 24212381.

It is an arithmetic number, because the mean of its divisors is an integer number (5289508224).

Almost surely, 2^123010202121 is an apocalyptic number.

It is an amenable number.

123010202121 is a deficient number, since it is larger than the sum of its proper divisors (46254061047).

123010202121 is a wasteful number, since it uses less digits than its factorization.

123010202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 123010202121 its reverse (121202010321), we get a palindrome (244212212442).

The spelling of 123010202121 in words is "one hundred twenty-three billion, ten million, two hundred two thousand, one hundred twenty-one".