30021031052 has 6 divisors (see below), whose sum is σ = 52536804348. Its totient is φ = 15010515524.

The previous prime is 30021031039. The next prime is 30021031069. The reversal of 30021031052 is 25013012003.

It is a self number, because there is not a number n which added to its sum of digits gives 30021031052.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3752628878 + ... + 3752628885.

It is an arithmetic number, because the mean of its divisors is an integer number (8756134058).

Almost surely, 2^30021031052 is an apocalyptic number.

It is an amenable number.

30021031052 is a deficient number, since it is larger than the sum of its proper divisors (22515773296).

30021031052 is a wasteful number, since it uses less digits than its factorization.

30021031052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7505257767 (or 7505257765 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 30021031052 its reverse (25013012003), we get a palindrome (55034043055).

The spelling of 30021031052 in words is "thirty billion, twenty-one million, thirty-one thousand, fifty-two".