1301220112331 has 4 divisors (see below), whose sum is σ = 1301228602200. Its totient is φ = 1301211622464.

The previous prime is 1301220112327. The next prime is 1301220112403. The reversal of 1301220112331 is 1332110221031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301220112331 - 2² = 1301220112327 is a prime.

It is a super-2 number, since 2×1301220112331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301220112321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4010726 + ... + 4323003.

It is an arithmetic number, because the mean of its divisors is an integer number (325307150550).

Almost surely, 2^{1301220112331} is an apocalyptic number.

1301220112331 is a deficient number, since it is larger than the sum of its proper divisors (8489869).

1301220112331 is an equidigital number, since it uses as much as digits as its factorization.

1301220112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8489868.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1301220112331 its reverse (1332110221031), we get a palindrome (2633330333362).

The spelling of 1301220112331 in words is "one trillion, three hundred one billion, two hundred twenty million, one hundred twelve thousand, three hundred thirty-one".