1213130122951 has 2 divisors, whose sum is σ = 1213130122952. Its totient is φ = 1213130122950.

The previous prime is 1213130122949. The next prime is 1213130123039. The reversal of 1213130122951 is 1592210313121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213130122951 - 2¹ = 1213130122949 is a prime.

It is a super-2 number, since 2×1213130122951² (a number of 25 digits) contains 22 as substring.

Together with 1213130122949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213130122921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606565061475 + 606565061476.

It is an arithmetic number, because the mean of its divisors is an integer number (606565061476).

Almost surely, 2^{1213130122951} is an apocalyptic number.

1213130122951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213130122951 is an equidigital number, since it uses as much as digits as its factorization.

1213130122951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 1213130122951 in words is "one trillion, two hundred thirteen billion, one hundred thirty million, one hundred twenty-two thousand, nine hundred fifty-one".