1311354051 has 8 divisors (see below), whose sum is σ = 1998253824. Its totient is φ = 749345160.

The previous prime is 1311354047. The next prime is 1311354053. The reversal of 1311354051 is 1504531131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311354051 - 2² = 1311354047 is a prime.

It is a super-2 number, since 2×1311354051² = 3439298894148221202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311354053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31222695 + ... + 31222736.

It is an arithmetic number, because the mean of its divisors is an integer number (249781728).

Almost surely, 2^1311354051 is an apocalyptic number.

1311354051 is a deficient number, since it is larger than the sum of its proper divisors (686899773).

1311354051 is an equidigital number, since it uses as much as digits as its factorization.

1311354051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62445441.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1311354051 is about 36212.6228130468. The cubic root of 1311354051 is about 1094.5610442161.

Adding to 1311354051 its reverse (1504531131), we get a palindrome (2815885182).

The spelling of 1311354051 in words is "one billion, three hundred eleven million, three hundred fifty-four thousand, fifty-one".