120001131525972 has 24 divisors (see below), whose sum is σ = 280003004545600. Its totient is φ = 40000325129856.

The previous prime is 120001131525929. The next prime is 120001131525973. The reversal of 120001131525972 is 279525131100021.

It is a self number, because there is not a number n which added to its sum of digits gives 120001131525972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001131525973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3747804 + ... + 15938892.

Almost surely, 2^{120001131525972} is an apocalyptic number.

120001131525972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120001131525972 is an abundant number, since it is smaller than the sum of its proper divisors (160001873019628).

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

120001131525972 is a wasteful number, since it uses less digits than its factorization.

120001131525972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13011375 (or 13011373 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 39.

Adding to 120001131525972 its reverse (279525131100021), we get a palindrome (399526262625993).

The spelling of 120001131525972 in words is "one hundred twenty trillion, one billion, one hundred thirty-one million, five hundred twenty-five thousand, nine hundred seventy-two".