11231313131229 has 4 divisors (see below), whose sum is σ = 14975084174976. Its totient is φ = 7487542087484.

The previous prime is 11231313131177. The next prime is 11231313131263. The reversal of 11231313131229 is 92213131313211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11231313131229 - 2⁹ = 11231313130717 is a prime.

It is a super-2 number, since 2×11231313131229² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11231313131229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231313131029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871885521869 + ... + 1871885521874.

It is an arithmetic number, because the mean of its divisors is an integer number (3743771043744).

Almost surely, 2^{11231313131229} is an apocalyptic number.

It is an amenable number.

11231313131229 is a deficient number, since it is larger than the sum of its proper divisors (3743771043747).

11231313131229 is an equidigital number, since it uses as much as digits as its factorization.

11231313131229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743771043746.

The product of its digits is 5832, while the sum is 33.

The spelling of 11231313131229 in words is "eleven trillion, two hundred thirty-one billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred twenty-nine".