31042132242 has 32 divisors (see below), whose sum is σ = 68182862400. Its totient is φ = 9343571520.

The previous prime is 31042132241. The next prime is 31042132271. The reversal of 31042132242 is 24223124013.

It is a happy number.

It is a super-2 number, since 2×31042132242² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31042132241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1568473 + ... + 1588140.

It is an arithmetic number, because the mean of its divisors is an integer number (2130714450).

Almost surely, 2^31042132242 is an apocalyptic number.

31042132242 is an abundant number, since it is smaller than the sum of its proper divisors (37140730158).

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

31042132242 is a wasteful number, since it uses less digits than its factorization.

31042132242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156778.

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

Adding to 31042132242 its reverse (24223124013), we get a palindrome (55265256255).

The spelling of 31042132242 in words is "thirty-one billion, forty-two million, one hundred thirty-two thousand, two hundred forty-two".