11952405901 has 2 divisors, whose sum is σ = 11952405902. Its totient is φ = 11952405900.

The previous prime is 11952405869. The next prime is 11952405919. The reversal of 11952405901 is 10950425911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6781357801 + 5171048100 = 82349^2 + 71910^2 .

It is a cyclic number.

It is not a de Polignac number, because 11952405901 - 2⁵ = 11952405869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11952405301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5976202950 + 5976202951.

It is an arithmetic number, because the mean of its divisors is an integer number (5976202951).

Almost surely, 2^11952405901 is an apocalyptic number.

It is an amenable number.

11952405901 is a deficient number, since it is larger than the sum of its proper divisors (1).

11952405901 is an equidigital number, since it uses as much as digits as its factorization.

11952405901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 37.

The spelling of 11952405901 in words is "eleven billion, nine hundred fifty-two million, four hundred five thousand, nine hundred one".