2120688930 has 16 divisors (see below), whose sum is σ = 5089653504. Its totient is φ = 565517040.

The previous prime is 2120688917. The next prime is 2120688943. The reversal of 2120688930 is 398860212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2120688917) and next prime (2120688943).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35344786 + ... + 35344845.

It is an arithmetic number, because the mean of its divisors is an integer number (318103344).

Almost surely, 2^2120688930 is an apocalyptic number.

2120688930 is an abundant number, since it is smaller than the sum of its proper divisors (2968964574).

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

2120688930 is a wasteful number, since it uses less digits than its factorization.

2120688930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70689641.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2120688930 is about 46050.9384269202. The cubic root of 2120688930 is about 1284.7707969322.

The spelling of 2120688930 in words is "two billion, one hundred twenty million, six hundred eighty-eight thousand, nine hundred thirty".