1315420111 has 4 divisors (see below), whose sum is σ = 1316910712. Its totient is φ = 1313929512.

The previous prime is 1315420081. The next prime is 1315420121. The reversal of 1315420111 is 1110245131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1315420111 - 2⁵ = 1315420079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315420121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743976 + ... + 745741.

It is an arithmetic number, because the mean of its divisors is an integer number (329227678).

Almost surely, 2^1315420111 is an apocalyptic number.

1315420111 is a deficient number, since it is larger than the sum of its proper divisors (1490601).

1315420111 is an equidigital number, since it uses as much as digits as its factorization.

1315420111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490600.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1315420111 is about 36268.7208349012. The cubic root of 1315420111 is about 1095.6911633489.

Adding to 1315420111 its reverse (1110245131), we get a palindrome (2425665242).

The spelling of 1315420111 in words is "one billion, three hundred fifteen million, four hundred twenty thousand, one hundred eleven".