30012520000 has 70 divisors (see below), whose sum is σ = 74421394718. Its totient is φ = 12004992000.

The previous prime is 30012519991. The next prime is 30012520009. The reversal of 30012520000 is 2521003.

It is an interprime number because it is at equal distance from previous prime (30012519991) and next prime (30012520009).

It can be written as a sum of positive squares in 5 ways, for example, as 23052956224 + 6959563776 = 151832^2 + 83424^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012520009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 335157 + ... + 415156.

Almost surely, 2^30012520000 is an apocalyptic number.

It is an amenable number.

30012520000 is an abundant number, since it is smaller than the sum of its proper divisors (44408874718).

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

30012520000 is an frugal number, since it uses more digits than its factorization.

30012520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750345 (or 750320 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The spelling of 30012520000 in words is "thirty billion, twelve million, five hundred twenty thousand".