1113203957 has 2 divisors, whose sum is σ = 1113203958. Its totient is φ = 1113203956.

The previous prime is 1113203951. The next prime is 1113204007. The reversal of 1113203957 is 7593023111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1055535121 + 57668836 = 32489^2 + 7594^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113203957 - 2¹⁴ = 1113187573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113203951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556601978 + 556601979.

It is an arithmetic number, because the mean of its divisors is an integer number (556601979).

Almost surely, 2^1113203957 is an apocalyptic number.

It is an amenable number.

1113203957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113203957 is an equidigital number, since it uses as much as digits as its factorization.

1113203957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 1113203957 is about 33364.7112530590. The cubic root of 1113203957 is about 1036.3940566649.

The spelling of 1113203957 in words is "one billion, one hundred thirteen million, two hundred three thousand, nine hundred fifty-seven".