31133100313 has 16 divisors (see below), whose sum is σ = 38012369920. Its totient is φ = 24903678096.

The previous prime is 31133100293. The next prime is 31133100359. The reversal of 31133100313 is 31300133113.

It is a happy number.

It is not a de Polignac number, because 31133100313 - 2¹³ = 31133092121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (31133100373) 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, 1737981 + ... + 1755802.

It is an arithmetic number, because the mean of its divisors is an integer number (2375773120).

Almost surely, 2^31133100313 is an apocalyptic number.

It is an amenable number.

31133100313 is a deficient number, since it is larger than the sum of its proper divisors (6879269607).

31133100313 is a wasteful number, since it uses less digits than its factorization.

31133100313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493876.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 31133100313 its reverse (31300133113), we get a palindrome (62433233426).

The spelling of 31133100313 in words is "thirty-one billion, one hundred thirty-three million, one hundred thousand, three hundred thirteen".