1231000140299 has 2 divisors, whose sum is σ = 1231000140300. Its totient is φ = 1231000140298.

The previous prime is 1231000140287. The next prime is 1231000140323. The reversal of 1231000140299 is 9920410001321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1231000140299 - 2²⁰ = 1230999091723 is a prime.

It is a super-2 number, since 2×1231000140299² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1231000140229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615500070149 + 615500070150.

It is an arithmetic number, because the mean of its divisors is an integer number (615500070150).

Almost surely, 2^{1231000140299} is an apocalyptic number.

1231000140299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231000140299 is an equidigital number, since it uses as much as digits as its factorization.

1231000140299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 1231000140299 in words is "one trillion, two hundred thirty-one billion, one hundred forty thousand, two hundred ninety-nine".