31314004242 has 32 divisors (see below), whose sum is σ = 63443732352. Its totient is φ = 10302626304.

The previous prime is 31314004237. The next prime is 31314004247. The reversal of 31314004242 is 24240041313.

It is an interprime number because it is at equal distance from previous prime (31314004237) and next prime (31314004247).

It is not an unprimeable number, because it can be changed into a prime (31314004247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144963 + ... + 289209.

It is an arithmetic number, because the mean of its divisors is an integer number (1982616636).

Almost surely, 2^31314004242 is an apocalyptic number.

31314004242 is an abundant number, since it is smaller than the sum of its proper divisors (32129728110).

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

31314004242 is a wasteful number, since it uses less digits than its factorization.

31314004242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144722.

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

Adding to 31314004242 its reverse (24240041313), we get a palindrome (55554045555).

The spelling of 31314004242 in words is "thirty-one billion, three hundred fourteen million, four thousand, two hundred forty-two".