30120100432 has 30 divisors (see below), whose sum is σ = 61005319802. Its totient is φ = 14405261376.

The previous prime is 30120100427. The next prime is 30120100487. The reversal of 30120100432 is 23400102103.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28718047296 + 1402053136 = 169464^2 + 37444^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1770843 + ... + 1787770.

Almost surely, 2^30120100432 is an apocalyptic number.

It is an amenable number.

30120100432 is an abundant number, since it is smaller than the sum of its proper divisors (30885219370).

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

30120100432 is a wasteful number, since it uses less digits than its factorization.

30120100432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558667 (or 3558638 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30120100432 its reverse (23400102103), we get a palindrome (53520202535).

The spelling of 30120100432 in words is "thirty billion, one hundred twenty million, one hundred thousand, four hundred thirty-two".