1356121630311 has 16 divisors (see below), whose sum is σ = 2108643936000. Its totient is φ = 774926645304.

The previous prime is 1356121630301. The next prime is 1356121630343. The reversal of 1356121630311 is 1130361216531.

It is a happy number.

It is not a de Polignac number, because 1356121630311 - 2¹⁴ = 1356121613927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356121630301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658950201 + ... + 658952258.

It is an arithmetic number, because the mean of its divisors is an integer number (131790246000).

Almost surely, 2^{1356121630311} is an apocalyptic number.

1356121630311 is a deficient number, since it is larger than the sum of its proper divisors (752522305689).

1356121630311 is an equidigital number, since it uses as much as digits as its factorization.

1356121630311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317902483 (or 1317902469 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

Adding to 1356121630311 its reverse (1130361216531), we get a palindrome (2486482846842).

The spelling of 1356121630311 in words is "one trillion, three hundred fifty-six billion, one hundred twenty-one million, six hundred thirty thousand, three hundred eleven".