2131242330 has 64 divisors (see below), whose sum is σ = 6099867648. Its totient is φ = 465960000.

The previous prime is 2131242299. The next prime is 2131242341. The reversal of 2131242330 is 332421312.

2131242330 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2131242297 and 2131242306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215796 + ... + 225455.

It is an arithmetic number, because the mean of its divisors is an integer number (95310432).

Almost surely, 2^2131242330 is an apocalyptic number.

2131242330 is an abundant number, since it is smaller than the sum of its proper divisors (3968625318).

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

2131242330 is a wasteful number, since it uses less digits than its factorization.

2131242330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441291.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2131242330 is about 46165.3802107163. The cubic root of 2131242330 is about 1286.8984500001.

Adding to 2131242330 its reverse (332421312), we get a palindrome (2463663642).

The spelling of 2131242330 in words is "two billion, one hundred thirty-one million, two hundred forty-two thousand, three hundred thirty".