13120142021251 has 2 divisors, whose sum is σ = 13120142021252. Its totient is φ = 13120142021250.

The previous prime is 13120142021243. The next prime is 13120142021279. The reversal of 13120142021251 is 15212024102131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13120142021251 - 2³ = 13120142021243 is a prime.

It is not a weakly prime, because it can be changed into another prime (13120142025251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560071010625 + 6560071010626.

It is an arithmetic number, because the mean of its divisors is an integer number (6560071010626).

Almost surely, 2^{13120142021251} is an apocalyptic number.

13120142021251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120142021251 is an equidigital number, since it uses as much as digits as its factorization.

13120142021251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 13120142021251 its reverse (15212024102131), we get a palindrome (28332166123382).

The spelling of 13120142021251 in words is "thirteen trillion, one hundred twenty billion, one hundred forty-two million, twenty-one thousand, two hundred fifty-one".