120525213131 has 4 divisors (see below), whose sum is σ = 124413123264. Its totient is φ = 116637303000.

The previous prime is 120525213077. The next prime is 120525213143. The reversal of 120525213131 is 131312525021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120525213131 - 2²⁶ = 120458104267 is a prime.

It is a super-2 number, since 2×120525213131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120525213131.

It is not an unprimeable number, because it can be changed into a prime (120525213031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943955020 + ... + 1943955081.

It is an arithmetic number, because the mean of its divisors is an integer number (31103280816).

Almost surely, 2^120525213131 is an apocalyptic number.

120525213131 is a deficient number, since it is larger than the sum of its proper divisors (3887910133).

120525213131 is an equidigital number, since it uses as much as digits as its factorization.

120525213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3887910132.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 120525213131 its reverse (131312525021), we get a palindrome (251837738152).

The spelling of 120525213131 in words is "one hundred twenty billion, five hundred twenty-five million, two hundred thirteen thousand, one hundred thirty-one".