101230440539 has 2 divisors, whose sum is σ = 101230440540. Its totient is φ = 101230440538.

The previous prime is 101230440529. The next prime is 101230440551. The reversal of 101230440539 is 935044032101.

It is a weak prime.

It is an emirp because it is prime and its reverse (935044032101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101230440539 - 2¹² = 101230436443 is a prime.

It is a super-2 number, since 2×101230440539² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101230440529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50615220269 + 50615220270.

It is an arithmetic number, because the mean of its divisors is an integer number (50615220270).

Almost surely, 2^101230440539 is an apocalyptic number.

101230440539 is a deficient number, since it is larger than the sum of its proper divisors (1).

101230440539 is an equidigital number, since it uses as much as digits as its factorization.

101230440539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 101230440539 in words is "one hundred one billion, two hundred thirty million, four hundred forty thousand, five hundred thirty-nine".