131120304454520 has 32 divisors (see below), whose sum is σ = 312374842966800. Its totient is φ = 49362938147328.

The previous prime is 131120304454507. The next prime is 131120304454523. The reversal of 131120304454520 is 25454403021131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131120304454523) 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, 96411987890 + ... + 96411989249.

Almost surely, 2^{131120304454520} is an apocalyptic number.

131120304454520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131120304454520 is an abundant number, since it is smaller than the sum of its proper divisors (181254538512280).

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

131120304454520 is a wasteful number, since it uses less digits than its factorization.

131120304454520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192823977167 (or 192823977163 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 131120304454520 its reverse (25454403021131), we get a palindrome (156574707475651).

The spelling of 131120304454520 in words is "one hundred thirty-one trillion, one hundred twenty billion, three hundred four million, four hundred fifty-four thousand, five hundred twenty".