11422351261 has 2 divisors, whose sum is σ = 11422351262. Its totient is φ = 11422351260.

The previous prime is 11422351247. The next prime is 11422351301. The reversal of 11422351261 is 16215322411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11105155161 + 317196100 = 105381^2 + 17810^2 .

It is a cyclic number.

It is not a de Polignac number, because 11422351261 - 2⁵ = 11422351229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11422351211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711175630 + 5711175631.

It is an arithmetic number, because the mean of its divisors is an integer number (5711175631).

Almost surely, 2^11422351261 is an apocalyptic number.

It is an amenable number.

11422351261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11422351261 is an equidigital number, since it uses as much as digits as its factorization.

11422351261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 28.

Adding to 11422351261 its reverse (16215322411), we get a palindrome (27637673672).

The spelling of 11422351261 in words is "eleven billion, four hundred twenty-two million, three hundred fifty-one thousand, two hundred sixty-one".