1013140991 has 2 divisors, whose sum is σ = 1013140992. Its totient is φ = 1013140990.

The previous prime is 1013140987. The next prime is 1013141011. The reversal of 1013140991 is 1990413101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1013140991 - 2² = 1013140987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013140981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506570495 + 506570496.

It is an arithmetic number, because the mean of its divisors is an integer number (506570496).

Almost surely, 2^1013140991 is an apocalyptic number.

1013140991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013140991 is an equidigital number, since it uses as much as digits as its factorization.

1013140991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 1013140991 is about 31829.8757616174. The cubic root of 1013140991 is about 1004.3612819018.

The spelling of 1013140991 in words is "one billion, thirteen million, one hundred forty thousand, nine hundred ninety-one".