31134121430 has 32 divisors (see below), whose sum is σ = 59005013760. Its totient is φ = 11795384160.

The previous prime is 31134121367. The next prime is 31134121477. The reversal of 31134121430 is 3412143113.

It is a junction number, because it is equal to n+sod(n) for n = 31134121396 and 31134121405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 892415 + ... + 926645.

It is an arithmetic number, because the mean of its divisors is an integer number (1843906680).

Almost surely, 2^31134121430 is an apocalyptic number.

31134121430 is a deficient number, since it is larger than the sum of its proper divisors (27870892330).

31134121430 is a wasteful number, since it uses less digits than its factorization.

31134121430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39044.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31134121430 its reverse (3412143113), we get a palindrome (34546264543).

The spelling of 31134121430 in words is "thirty-one billion, one hundred thirty-four million, one hundred twenty-one thousand, four hundred thirty".