11333251013 has 12 divisors (see below), whose sum is σ = 13192516620. Its totient is φ = 9707628672.

The previous prime is 11333251009. The next prime is 11333251049. The reversal of 11333251013 is 31015233311.

It can be written as a sum of positive squares in 2 ways, for example, as 5574414244 + 5758836769 = 74662^2 + 75887^2 .

It is not a de Polignac number, because 11333251013 - 2² = 11333251009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11333251013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11333251003) 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, 4706 + ... + 150627.

It is an arithmetic number, because the mean of its divisors is an integer number (1099376385).

Almost surely, 2^11333251013 is an apocalyptic number.

It is an amenable number.

11333251013 is a deficient number, since it is larger than the sum of its proper divisors (1859265607).

11333251013 is a wasteful number, since it uses less digits than its factorization.

11333251013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156836 (or 156829 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 11333251013 its reverse (31015233311), we get a palindrome (42348484324).

The spelling of 11333251013 in words is "eleven billion, three hundred thirty-three million, two hundred fifty-one thousand, thirteen".