1244202002131 has 32 divisors (see below), whose sum is σ = 1389349117440. Its totient is φ = 1104704294400.

The previous prime is 1244202002111. The next prime is 1244202002149. The reversal of 1244202002131 is 1312002024421.

It is a cyclic number.

It is not a de Polignac number, because 1244202002131 - 2²⁵ = 1244168447699 is a prime.

It is a super-2 number, since 2×1244202002131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244202002101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322915801 + ... + 322919653.

It is an arithmetic number, because the mean of its divisors is an integer number (43417159920).

Almost surely, 2^{1244202002131} is an apocalyptic number.

1244202002131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1244202002131 is a deficient number, since it is larger than the sum of its proper divisors (145147115309).

1244202002131 is a wasteful number, since it uses less digits than its factorization.

1244202002131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7707.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1244202002131 its reverse (1312002024421), we get a palindrome (2556204026552).

The spelling of 1244202002131 in words is "one trillion, two hundred forty-four billion, two hundred two million, two thousand, one hundred thirty-one".