30120761421 has 12 divisors (see below), whose sum is σ = 44683652572. Its totient is φ = 19537790976.

The previous prime is 30120761399. The next prime is 30120761423. The reversal of 30120761421 is 12416702103.

30120761421 is a `hidden beast` number, since 3 + 0 + 1 + 20 + 7 + 614 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27485992521 + 2634768900 = 165789^2 + 51330^2 .

It is not a de Polignac number, because 30120761421 - 2⁶ = 30120761357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120761423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45226036 + ... + 45226701.

Almost surely, 2^30120761421 is an apocalyptic number.

It is an amenable number.

30120761421 is a deficient number, since it is larger than the sum of its proper divisors (14562891151).

30120761421 is a wasteful number, since it uses less digits than its factorization.

30120761421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90452780 (or 90452777 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The spelling of 30120761421 in words is "thirty billion, one hundred twenty million, seven hundred sixty-one thousand, four hundred twenty-one".