1013403901 has 2 divisors, whose sum is σ = 1013403902. Its totient is φ = 1013403900.

The previous prime is 1013403899. The next prime is 1013403907. The reversal of 1013403901 is 1093043101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810768676 + 202635225 = 28474^2 + 14235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013403901 - 2¹ = 1013403899 is a prime.

Together with 1013403899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013403907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506701950 + 506701951.

It is an arithmetic number, because the mean of its divisors is an integer number (506701951).

Almost surely, 2^1013403901 is an apocalyptic number.

It is an amenable number.

1013403901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013403901 is an equidigital number, since it uses as much as digits as its factorization.

1013403901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1013403901 is about 31834.0054187342. The cubic root of 1013403901 is about 1004.4481516101.

The spelling of 1013403901 in words is "one billion, thirteen million, four hundred three thousand, nine hundred one".