43132120520 has 64 divisors (see below), whose sum is σ = 102793088880. Its totient is φ = 16232103936.

The previous prime is 43132120483. The next prime is 43132120583. The reversal of 43132120520 is 2502123134.

It can be written as a sum of positive squares in 8 ways, for example, as 23446346884 + 19685773636 = 153122^2 + 140306^2 .

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, 2177702 + ... + 2197418.

Almost surely, 2^43132120520 is an apocalyptic number.

43132120520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43132120520 is an abundant number, since it is smaller than the sum of its proper divisors (59660968360).

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

43132120520 is a wasteful number, since it uses less digits than its factorization.

43132120520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22962 (or 22958 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 43132120520 its reverse (2502123134), we get a palindrome (45634243654).

The spelling of 43132120520 in words is "forty-three billion, one hundred thirty-two million, one hundred twenty thousand, five hundred twenty".