3131420442 has 16 divisors (see below), whose sum is σ = 6263671680. Its totient is φ = 1043668352.

The previous prime is 3131420441. The next prime is 3131420443. The reversal of 3131420442 is 2440241313.

It is an interprime number because it is at equal distance from previous prime (3131420441) and next prime (3131420443).

It is not an unprimeable number, because it can be changed into a prime (3131420441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21343 + ... + 81965.

It is an arithmetic number, because the mean of its divisors is an integer number (391479480).

Almost surely, 2^3131420442 is an apocalyptic number.

3131420442 is an abundant number, since it is smaller than the sum of its proper divisors (3132251238).

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

3131420442 is a wasteful number, since it uses less digits than its factorization.

3131420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69237.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 3131420442 is about 55959.0961506706. The cubic root of 3131420442 is about 1463.0094367855.

Adding to 3131420442 its reverse (2440241313), we get a palindrome (5571661755).

The spelling of 3131420442 in words is "three billion, one hundred thirty-one million, four hundred twenty thousand, four hundred forty-two".