1231412142321 has 20 divisors (see below), whose sum is σ = 1840431874864. Its totient is φ = 820533094200.

The previous prime is 1231412142319. The next prime is 1231412142383. The reversal of 1231412142321 is 1232412141321.

1231412142321 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 412 + 14 + 232 + 1 = 666.

It is not a de Polignac number, because 1231412142321 - 2¹ = 1231412142319 is a prime.

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 (1231412144321) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3616975 + ... + 3942756.

Almost surely, 2^{1231412142321} is an apocalyptic number.

It is an amenable number.

1231412142321 is a deficient number, since it is larger than the sum of its proper divisors (609019732543).

1231412142321 is an equidigital number, since it uses as much as digits as its factorization.

1231412142321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7561754 (or 7561745 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 1231412142321 its reverse (1232412141321), we get a palindrome (2463824283642).

The spelling of 1231412142321 in words is "one trillion, two hundred thirty-one billion, four hundred twelve million, one hundred forty-two thousand, three hundred twenty-one".