11802970261 has 2 divisors, whose sum is σ = 11802970262. Its totient is φ = 11802970260.

The previous prime is 11802970211. The next prime is 11802970313. The reversal of 11802970261 is 16207920811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9116621361 + 2686348900 = 95481^2 + 51830^2 .

It is a cyclic number.

It is not a de Polignac number, because 11802970261 - 2²³ = 11794581653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11802970261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11802970211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5901485130 + 5901485131.

It is an arithmetic number, because the mean of its divisors is an integer number (5901485131).

Almost surely, 2^11802970261 is an apocalyptic number.

It is an amenable number.

11802970261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11802970261 is an equidigital number, since it uses as much as digits as its factorization.

11802970261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The spelling of 11802970261 in words is "eleven billion, eight hundred two million, nine hundred seventy thousand, two hundred sixty-one".