11403120049 has 2 divisors, whose sum is σ = 11403120050. Its totient is φ = 11403120048.

The previous prime is 11403120037. The next prime is 11403120059. The reversal of 11403120049 is 94002130411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10474089649 + 929030400 = 102343^2 + 30480^2 .

It is a cyclic number.

It is not a de Polignac number, because 11403120049 - 2⁵ = 11403120017 is a prime.

It is a super-2 number, since 2×11403120049² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11403120019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701560024 + 5701560025.

It is an arithmetic number, because the mean of its divisors is an integer number (5701560025).

Almost surely, 2^11403120049 is an apocalyptic number.

It is an amenable number.

11403120049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11403120049 is an equidigital number, since it uses as much as digits as its factorization.

11403120049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 11403120049 in words is "eleven billion, four hundred three million, one hundred twenty thousand, forty-nine".