1213001010311 has 2 divisors, whose sum is σ = 1213001010312. Its totient is φ = 1213001010310.

The previous prime is 1213001010269. The next prime is 1213001010323. The reversal of 1213001010311 is 1130101003121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213001010311 - 2²⁶ = 1212933901447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213001010371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606500505155 + 606500505156.

It is an arithmetic number, because the mean of its divisors is an integer number (606500505156).

Almost surely, 2^{1213001010311} is an apocalyptic number.

1213001010311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213001010311 is an equidigital number, since it uses as much as digits as its factorization.

1213001010311 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1213001010311 its reverse (1130101003121), we get a palindrome (2343102013432).

The spelling of 1213001010311 in words is "one trillion, two hundred thirteen billion, one million, ten thousand, three hundred eleven".