12540243083 has 2 divisors, whose sum is σ = 12540243084. Its totient is φ = 12540243082.

The previous prime is 12540243059. The next prime is 12540243097. The reversal of 12540243083 is 38034204521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12540243083 - 2¹⁰ = 12540242059 is a prime.

It is not a weakly prime, because it can be changed into another prime (12540243013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6270121541 + 6270121542.

It is an arithmetic number, because the mean of its divisors is an integer number (6270121542).

Almost surely, 2^12540243083 is an apocalyptic number.

12540243083 is a deficient number, since it is larger than the sum of its proper divisors (1).

12540243083 is an equidigital number, since it uses as much as digits as its factorization.

12540243083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 12540243083 in words is "twelve billion, five hundred forty million, two hundred forty-three thousand, eighty-three".