31004134142 has 4 divisors (see below), whose sum is σ = 46506201216. Its totient is φ = 15502067070.

The previous prime is 31004134123. The next prime is 31004134171. The reversal of 31004134142 is 24143140013.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×31004134142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7751033534 + ... + 7751033537.

It is an arithmetic number, because the mean of its divisors is an integer number (11626550304).

Almost surely, 2^31004134142 is an apocalyptic number.

31004134142 is a deficient number, since it is larger than the sum of its proper divisors (15502067074).

31004134142 is a wasteful number, since it uses less digits than its factorization.

31004134142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15502067073.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31004134142 its reverse (24143140013), we get a palindrome (55147274155).

The spelling of 31004134142 in words is "thirty-one billion, four million, one hundred thirty-four thousand, one hundred forty-two".