30142021250 has 160 divisors (see below), whose sum is σ = 63785981952. Its totient is φ = 10584000000.

The previous prime is 30142021237. The next prime is 30142021253. The reversal of 30142021250 is 5212024103.

It is not an unprimeable number, because it can be changed into a prime (30142021253) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 71596040 + ... + 71596460.

Almost surely, 2^30142021250 is an apocalyptic number.

30142021250 is an abundant number, since it is smaller than the sum of its proper divisors (33643960702).

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

30142021250 is a wasteful number, since it uses less digits than its factorization.

30142021250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 30142021250 its reverse (5212024103), we get a palindrome (35354045353).

The spelling of 30142021250 in words is "thirty billion, one hundred forty-two million, twenty-one thousand, two hundred fifty".