11503750957 has 2 divisors, whose sum is σ = 11503750958. Its totient is φ = 11503750956.

The previous prime is 11503750949. The next prime is 11503750969. The reversal of 11503750957 is 75905730511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9551348361 + 1952402596 = 97731^2 + 44186^2 .

It is a cyclic number.

It is not a de Polignac number, because 11503750957 - 2³ = 11503750949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11503750057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5751875478 + 5751875479.

It is an arithmetic number, because the mean of its divisors is an integer number (5751875479).

Almost surely, 2^11503750957 is an apocalyptic number.

It is an amenable number.

11503750957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11503750957 is an equidigital number, since it uses as much as digits as its factorization.

11503750957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165375, while the sum is 43.

The spelling of 11503750957 in words is "eleven billion, five hundred three million, seven hundred fifty thousand, nine hundred fifty-seven".