31133010100 has 36 divisors (see below), whose sum is σ = 68510177568. Its totient is φ = 12277804000.

The previous prime is 31133010091. The next prime is 31133010107. The reversal of 31133010100 is 101033113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31133010107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2185366 + ... + 2199565.

It is an arithmetic number, because the mean of its divisors is an integer number (1903060488).

Almost surely, 2^31133010100 is an apocalyptic number.

It is an amenable number.

31133010100 is an abundant number, since it is smaller than the sum of its proper divisors (37377167468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31133010100 is a wasteful number, since it uses less digits than its factorization.

31133010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385016 (or 4385009 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 31133010100 its reverse (101033113), we get a palindrome (31234043213).

The spelling of 31133010100 in words is "thirty-one billion, one hundred thirty-three million, ten thousand, one hundred".