1312242020145 has 48 divisors (see below), whose sum is σ = 2599609064832. Its totient is φ = 599854348800.

The previous prime is 1312242020051. The next prime is 1312242020161. The reversal of 1312242020145 is 5410202422131.

1312242020145 is a `hidden beast` number, since 1 + 31 + 2 + 2 + 420 + 201 + 4 + 5 = 666.

It is not a de Polignac number, because 1312242020145 - 2¹¹ = 1312242018097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7744249 + ... + 7911881.

It is an arithmetic number, because the mean of its divisors is an integer number (54158522184).

Almost surely, 2^{1312242020145} is an apocalyptic number.

1312242020145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312242020145 is a deficient number, since it is larger than the sum of its proper divisors (1287367044687).

1312242020145 is a wasteful number, since it uses less digits than its factorization.

1312242020145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192502 (or 192499 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 1312242020145 its reverse (5410202422131), we get a palindrome (6722444442276).

The spelling of 1312242020145 in words is "one trillion, three hundred twelve billion, two hundred forty-two million, twenty thousand, one hundred forty-five".