31233233045 has 32 divisors (see below), whose sum is σ = 43172898048. Its totient is φ = 21248368128.

The previous prime is 31233233041. The next prime is 31233233047. The reversal of 31233233045 is 54033233213.

It is a cyclic number.

It is not a de Polignac number, because 31233233045 - 2² = 31233233041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31233232999 and 31233233017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233233041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2321177 + ... + 2334593.

It is an arithmetic number, because the mean of its divisors is an integer number (1349153064).

Almost surely, 2^31233233045 is an apocalyptic number.

31233233045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31233233045 is a deficient number, since it is larger than the sum of its proper divisors (11939665003).

31233233045 is a wasteful number, since it uses less digits than its factorization.

31233233045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13949.

The product of its (nonzero) digits is 19440, while the sum is 29.

Adding to 31233233045 its reverse (54033233213), we get a palindrome (85266466258).

The spelling of 31233233045 in words is "thirty-one billion, two hundred thirty-three million, two hundred thirty-three thousand, forty-five".