2131242402 has 48 divisors (see below), whose sum is σ = 4487849856. Its totient is φ = 674236800.

The previous prime is 2131242341. The next prime is 2131242403. The reversal of 2131242402 is 2042421312.

It is not an unprimeable number, because it can be changed into a prime (2131242403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370327 + ... + 376037.

It is an arithmetic number, because the mean of its divisors is an integer number (93496872).

Almost surely, 2^2131242402 is an apocalyptic number.

2131242402 is an abundant number, since it is smaller than the sum of its proper divisors (2356607454).

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

2131242402 is a wasteful number, since it uses less digits than its factorization.

2131242402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835 (or 5794 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2131242402 is about 46165.3809905215. The cubic root of 2131242402 is about 1286.8984644920.

Adding to 2131242402 its reverse (2042421312), we get a palindrome (4173663714).

The spelling of 2131242402 in words is "two billion, one hundred thirty-one million, two hundred forty-two thousand, four hundred two".