31134452530 has 32 divisors (see below), whose sum is σ = 57572925696. Its totient is φ = 12113769024.

The previous prime is 31134452497. The next prime is 31134452533. The reversal of 31134452530 is 3525443113.

It is a junction number, because it is equal to n+sod(n) for n = 31134452492 and 31134452501.

It is not an unprimeable number, because it can be changed into a prime (31134452533) 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, 1591267 + ... + 1610713.

It is an arithmetic number, because the mean of its divisors is an integer number (1799153928).

Almost surely, 2^31134452530 is an apocalyptic number.

31134452530 is a deficient number, since it is larger than the sum of its proper divisors (26438473166).

31134452530 is a wasteful number, since it uses less digits than its factorization.

31134452530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23818.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 31134452530 its reverse (3525443113), we get a palindrome (34659895643).

The spelling of 31134452530 in words is "thirty-one billion, one hundred thirty-four million, four hundred fifty-two thousand, five hundred thirty".