31520004134 has 8 divisors (see below), whose sum is σ = 49768427640. Its totient is φ = 14930528256.

The previous prime is 31520004121. The next prime is 31520004161. The reversal of 31520004134 is 43140002513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414736859 + ... + 414736934.

It is an arithmetic number, because the mean of its divisors is an integer number (6221053455).

Almost surely, 2^31520004134 is an apocalyptic number.

31520004134 is a deficient number, since it is larger than the sum of its proper divisors (18248423506).

31520004134 is a wasteful number, since it uses less digits than its factorization.

31520004134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829473814.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 31520004134 its reverse (43140002513), we get a palindrome (74660006647).

The spelling of 31520004134 in words is "thirty-one billion, five hundred twenty million, four thousand, one hundred thirty-four".