1320100311 has 16 divisors (see below), whose sum is σ = 1817883648. Its totient is φ = 851222400.

The previous prime is 1320100283. The next prime is 1320100321. The reversal of 1320100311 is 1130010231.

It is not a de Polignac number, because 1320100311 - 2⁹ = 1320099799 is a prime.

It is a super-2 number, since 2×1320100311² = 3485329662204593442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320100321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309151 + ... + 313391.

It is an arithmetic number, because the mean of its divisors is an integer number (113617728).

Almost surely, 2^1320100311 is an apocalyptic number.

1320100311 is a deficient number, since it is larger than the sum of its proper divisors (497783337).

1320100311 is a wasteful number, since it uses less digits than its factorization.

1320100311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1320100311 is about 36333.1847076471. The cubic root of 1320100311 is about 1096.9890969761.

Adding to 1320100311 its reverse (1130010231), we get a palindrome (2450110542).

The spelling of 1320100311 in words is "one billion, three hundred twenty million, one hundred thousand, three hundred eleven".