1181103401 has 2 divisors, whose sum is σ = 1181103402. Its totient is φ = 1181103400.

The previous prime is 1181103323. The next prime is 1181103419. The reversal of 1181103401 is 1043011811.

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., 639331225 + 541772176 = 25285^2 + 23276^2 .

It is a cyclic number.

It is not a de Polignac number, because 1181103401 - 2³⁰ = 107361577 is a prime.

It is not a weakly prime, because it can be changed into another prime (1181103491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590551700 + 590551701.

It is an arithmetic number, because the mean of its divisors is an integer number (590551701).

Almost surely, 2^1181103401 is an apocalyptic number.

It is an amenable number.

1181103401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181103401 is an equidigital number, since it uses as much as digits as its factorization.

1181103401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 1181103401 is about 34367.1849443623. The cubic root of 1181103401 is about 1057.0510777594.

The spelling of 1181103401 in words is "one billion, one hundred eighty-one million, one hundred three thousand, four hundred one".