12101253402 has 48 divisors (see below), whose sum is σ = 28351262016. Its totient is φ = 3373152000.

The previous prime is 12101253377. The next prime is 12101253421. The reversal of 12101253402 is 20435210121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15099 + ... + 156302.

It is an arithmetic number, because the mean of its divisors is an integer number (590651292).

Almost surely, 2^12101253402 is an apocalyptic number.

12101253402 is an abundant number, since it is smaller than the sum of its proper divisors (16250008614).

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

12101253402 is a wasteful number, since it uses less digits than its factorization.

12101253402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171495 (or 171454 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 12101253402 its reverse (20435210121), we get a palindrome (32536463523).

The spelling of 12101253402 in words is "twelve billion, one hundred one million, two hundred fifty-three thousand, four hundred two".