30020521234 has 32 divisors (see below), whose sum is σ = 49612178880. Its totient is φ = 13510411200.

The previous prime is 30020521199. The next prime is 30020521259. The reversal of 30020521234 is 43212502003.

It is a super-2 number, since 2×30020521234² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 3883297 + ... + 3891019.

It is an arithmetic number, because the mean of its divisors is an integer number (1550380590).

Almost surely, 2^30020521234 is an apocalyptic number.

30020521234 is a deficient number, since it is larger than the sum of its proper divisors (19591657646).

30020521234 is a wasteful number, since it uses less digits than its factorization.

30020521234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9466.

The product of its (nonzero) digits is 1440, while the sum is 22.

The spelling of 30020521234 in words is "thirty billion, twenty million, five hundred twenty-one thousand, two hundred thirty-four".