11311021310 has 16 divisors (see below), whose sum is σ = 20561422752. Its totient is φ = 4479612000.

The previous prime is 11311021307. The next prime is 11311021321. The reversal of 11311021310 is 1312011311.

It is a happy number.

It is a super-2 number, since 2×11311021310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5598506 + ... + 5600525.

It is an arithmetic number, because the mean of its divisors is an integer number (1285088922).

Almost surely, 2^11311021310 is an apocalyptic number.

11311021310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311021310 is a deficient number, since it is larger than the sum of its proper divisors (9250401442).

11311021310 is a wasteful number, since it uses less digits than its factorization.

11311021310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11199139.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11311021310 its reverse (1312011311), we get a palindrome (12623032621).

Subtracting from 11311021310 its reverse (1312011311), we obtain a palindrome (9999009999).

The spelling of 11311021310 in words is "eleven billion, three hundred eleven million, twenty-one thousand, three hundred ten".