1401311039 has 2 divisors, whose sum is σ = 1401311040. Its totient is φ = 1401311038.

The previous prime is 1401311029. The next prime is 1401311057. The reversal of 1401311039 is 9301131041.

It is a weak prime.

It is an emirp because it is prime and its reverse (9301131041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401311039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401311029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700655519 + 700655520.

It is an arithmetic number, because the mean of its divisors is an integer number (700655520).

Almost surely, 2^1401311039 is an apocalyptic number.

1401311039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401311039 is an equidigital number, since it uses as much as digits as its factorization.

1401311039 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 23.

The square root of 1401311039 is about 37434.0892636645. The cubic root of 1401311039 is about 1119.0380342846.

It can be divided in two parts, 14013 and 11039, that added together give a palindrome (25052).

The spelling of 1401311039 in words is "one billion, four hundred one million, three hundred eleven thousand, thirty-nine".