11161302997 has 12 divisors (see below), whose sum is σ = 12098285184. Its totient is φ = 10292190480.

The previous prime is 11161302979. The next prime is 11161303003. The reversal of 11161302997 is 79920316111.

It is not a de Polignac number, because 11161302997 - 2¹⁹ = 11160778709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161302947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134158 + ... + 200800.

It is an arithmetic number, because the mean of its divisors is an integer number (1008190432).

Almost surely, 2^11161302997 is an apocalyptic number.

It is an amenable number.

11161302997 is a deficient number, since it is larger than the sum of its proper divisors (936982187).

11161302997 is an equidigital number, since it uses as much as digits as its factorization.

11161302997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67660 (or 67647 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 40.

The spelling of 11161302997 in words is "eleven billion, one hundred sixty-one million, three hundred two thousand, nine hundred ninety-seven".