131421451252 has 48 divisors (see below), whose sum is σ = 283138627072. Its totient is φ = 51976753920.

The previous prime is 131421451201. The next prime is 131421451261. The reversal of 131421451252 is 252154124131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344352 + ... + 1438792.

Almost surely, 2^131421451252 is an apocalyptic number.

It is an amenable number.

131421451252 is an abundant number, since it is smaller than the sum of its proper divisors (151717175820).

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

131421451252 is a wasteful number, since it uses less digits than its factorization.

131421451252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98288 (or 98286 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

Adding to 131421451252 its reverse (252154124131), we get a palindrome (383575575383).

The spelling of 131421451252 in words is "one hundred thirty-one billion, four hundred twenty-one million, four hundred fifty-one thousand, two hundred fifty-two".