11321213131012 has 24 divisors (see below), whose sum is σ = 19819099855800. Its totient is φ = 5658613524480.

The previous prime is 11321213131003. The next prime is 11321213131031. The reversal of 11321213131012 is 21013131212311.

It can be written as a sum of positive squares in 4 ways, for example, as 4198794417216 + 7122418713796 = 2049096^2 + 2668786^2 .

It is a super-2 number, since 2×11321213131012² (a number of 27 digits) contains 22 as substring.

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, 150236608 + ... + 150311944.

It is an arithmetic number, because the mean of its divisors is an integer number (825795827325).

Almost surely, 2^{11321213131012} is an apocalyptic number.

It is an amenable number.

11321213131012 is a deficient number, since it is larger than the sum of its proper divisors (8497886724788).

11321213131012 is a wasteful number, since it uses less digits than its factorization.

11321213131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88071 (or 88069 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11321213131012 its reverse (21013131212311), we get a palindrome (32334344343323).

The spelling of 11321213131012 in words is "eleven trillion, three hundred twenty-one billion, two hundred thirteen million, one hundred thirty-one thousand, twelve".