31145002202234 has 32 divisors (see below), whose sum is σ = 47866809399552. Its totient is φ = 15193624680000.

The previous prime is 31145002202227. The next prime is 31145002202239. The reversal of 31145002202234 is 43220220054113.

It is a super-2 number, since 2×31145002202234² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31145002202197 and 31145002202206.

It is not an unprimeable number, because it can be changed into a prime (31145002202239) 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, 36124784 + ... + 36976884.

It is an arithmetic number, because the mean of its divisors is an integer number (1495837793736).

Almost surely, 2^{31145002202234} is an apocalyptic number.

31145002202234 is a deficient number, since it is larger than the sum of its proper divisors (16721807197318).

31145002202234 is a wasteful number, since it uses less digits than its factorization.

31145002202234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854582.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 31145002202234 its reverse (43220220054113), we get a palindrome (74365222256347).

The spelling of 31145002202234 in words is "thirty-one trillion, one hundred forty-five billion, two million, two hundred two thousand, two hundred thirty-four".