31553331134 has 32 divisors (see below), whose sum is σ = 54195039360. Its totient is φ = 13649029632.

The previous prime is 31553331133. The next prime is 31553331143. The reversal of 31553331134 is 43113335513.

It is a super-2 number, since 2×31553331134² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31553331134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31553331133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43709 + ... + 254984.

It is an arithmetic number, because the mean of its divisors is an integer number (1693594980).

Almost surely, 2^31553331134 is an apocalyptic number.

31553331134 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31553331134 is a deficient number, since it is larger than the sum of its proper divisors (22641708226).

31553331134 is a wasteful number, since it uses less digits than its factorization.

31553331134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298964.

The product of its digits is 24300, while the sum is 32.

Adding to 31553331134 its reverse (43113335513), we get a palindrome (74666666647).

The spelling of 31553331134 in words is "thirty-one billion, five hundred fifty-three million, three hundred thirty-one thousand, one hundred thirty-four".