1213002131211 has 12 divisors (see below), whose sum is σ = 1886892204288. Its totient is φ = 746462849904.

The previous prime is 1213002131177. The next prime is 1213002131219. The reversal of 1213002131211 is 1121312003121.

1213002131211 is a `hidden beast` number, since 1 + 21 + 300 + 2 + 131 + 211 = 666.

It is not a de Polignac number, because 1213002131211 - 2⁹ = 1213002130699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213002131219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5183769675 + ... + 5183769908.

It is an arithmetic number, because the mean of its divisors is an integer number (157241017024).

Almost surely, 2^{1213002131211} is an apocalyptic number.

1213002131211 is a deficient number, since it is larger than the sum of its proper divisors (673890073077).

1213002131211 is a wasteful number, since it uses less digits than its factorization.

1213002131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10367539602 (or 10367539599 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1213002131211 its reverse (1121312003121), we get a palindrome (2334314134332).

The spelling of 1213002131211 in words is "one trillion, two hundred thirteen billion, two million, one hundred thirty-one thousand, two hundred eleven".