6121132520 has 32 divisors (see below), whose sum is σ = 13783046400. Its totient is φ = 2446586688.

The previous prime is 6121132519. The next prime is 6121132547. The reversal of 6121132520 is 252311216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4580 + ... + 110739.

It is an arithmetic number, because the mean of its divisors is an integer number (430720200).

Almost surely, 2^6121132520 is an apocalyptic number.

It is an amenable number.

6121132520 is an abundant number, since it is smaller than the sum of its proper divisors (7661913880).

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

6121132520 is a wasteful number, since it uses less digits than its factorization.

6121132520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116657 (or 116653 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 6121132520 is about 78237.6668875037. Note that the first 3 decimals coincide. The cubic root of 6121132520 is about 1829.2676775585.

Adding to 6121132520 its reverse (252311216), we get a palindrome (6373443736).

The spelling of 6121132520 in words is "six billion, one hundred twenty-one million, one hundred thirty-two thousand, five hundred twenty".