1011315206639 has 2 divisors, whose sum is σ = 1011315206640. Its totient is φ = 1011315206638.

The previous prime is 1011315206633. The next prime is 1011315206677. The reversal of 1011315206639 is 9366025131101.

It is an a-pointer prime, because the next prime (1011315206677) can be obtained adding 1011315206639 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011315206639 - 2⁴ = 1011315206623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011315206633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505657603319 + 505657603320.

It is an arithmetic number, because the mean of its divisors is an integer number (505657603320).

Almost surely, 2^{1011315206639} is an apocalyptic number.

1011315206639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011315206639 is an equidigital number, since it uses as much as digits as its factorization.

1011315206639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 1011315206639 in words is "one trillion, eleven billion, three hundred fifteen million, two hundred six thousand, six hundred thirty-nine".