1291361560229 has 16 divisors (see below), whose sum is σ = 1397558870400. Its totient is φ = 1186157494080.

The previous prime is 1291361560211. The next prime is 1291361560231. The reversal of 1291361560229 is 9220651631921.

It is not a de Polignac number, because 1291361560229 - 2⁸ = 1291361559973 is a prime.

It is a super-2 number, since 2×1291361560229² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291361560249) 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, 2120519 + ... + 2660699.

It is an arithmetic number, because the mean of its divisors is an integer number (87347429400).

Almost surely, 2^{1291361560229} is an apocalyptic number.

It is an amenable number.

1291361560229 is a deficient number, since it is larger than the sum of its proper divisors (106197310171).

1291361560229 is a wasteful number, since it uses less digits than its factorization.

1291361560229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541100.

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 1291361560229 in words is "one trillion, two hundred ninety-one billion, three hundred sixty-one million, five hundred sixty thousand, two hundred twenty-nine".