1291230899359 has 16 divisors (see below), whose sum is σ = 1302942516480. Its totient is φ = 1279563566400.

The previous prime is 1291230899353. The next prime is 1291230899377. The reversal of 1291230899359 is 9539980321921.

It is a cyclic number.

It is not a de Polignac number, because 1291230899359 - 2²³ = 1291222510751 is a prime.

It is a super-2 number, since 2×1291230899359² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1291230899297 and 1291230899306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291230899353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234468084 + ... + 234473590.

It is an arithmetic number, because the mean of its divisors is an integer number (81433907280).

Almost surely, 2^{1291230899359} is an apocalyptic number.

1291230899359 is a deficient number, since it is larger than the sum of its proper divisors (11711617121).

1291230899359 is a wasteful number, since it uses less digits than its factorization.

1291230899359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9150.

The product of its (nonzero) digits is 9447840, while the sum is 61.

The spelling of 1291230899359 in words is "one trillion, two hundred ninety-one billion, two hundred thirty million, eight hundred ninety-nine thousand, three hundred fifty-nine".