1231320314241 has 14 divisors (see below), whose sum is σ = 1846135945490. Its totient is φ = 820880209008.

The previous prime is 1231320314209. The next prime is 1231320314293. The reversal of 1231320314241 is 1424130231321.

1231320314241 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 320 + 314 + 24 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1214712579600 + 16607734641 = 1102140^2 + 128871^2 .

It is not a de Polignac number, because 1231320314241 - 2⁵ = 1231320314209 is a prime.

It is a super-2 number, since 2×1231320314241² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231320314641) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 844526236 + ... + 844527693.

Almost surely, 2^{1231320314241} is an apocalyptic number.

It is an amenable number.

1231320314241 is a deficient number, since it is larger than the sum of its proper divisors (614815631249).

1231320314241 is an frugal number, since it uses more digits than its factorization.

1231320314241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689053947 (or 1689053932 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1231320314241 its reverse (1424130231321), we get a palindrome (2655450545562).

The spelling of 1231320314241 in words is "one trillion, two hundred thirty-one billion, three hundred twenty million, three hundred fourteen thousand, two hundred forty-one".