13111031221010 has 32 divisors (see below), whose sum is σ = 24842153649600. Its totient is φ = 4968350827200.

The previous prime is 13111031220979. The next prime is 13111031221019. The reversal of 13111031221010 is 1012213011131.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13111031221010.

It is not an unprimeable number, because it can be changed into a prime (13111031221019) 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, 35570660 + ... + 35937360.

It is an arithmetic number, because the mean of its divisors is an integer number (776317301550).

Almost surely, 2^{13111031221010} is an apocalyptic number.

13111031221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13111031221010 is a deficient number, since it is larger than the sum of its proper divisors (11731122428590).

13111031221010 is a wasteful number, since it uses less digits than its factorization.

13111031221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554906.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 13111031221010 its reverse (1012213011131), we get a palindrome (14123244232141).

The spelling of 13111031221010 in words is "thirteen trillion, one hundred eleven billion, thirty-one million, two hundred twenty-one thousand, ten".