1313151511 has 8 divisors (see below), whose sum is σ = 1501022720. Its totient is φ = 1125349848.

The previous prime is 1313151493. The next prime is 1313151527. The reversal of 1313151511 is 1151513131.

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

It is not a de Polignac number, because 1313151511 - 2¹¹ = 1313149463 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 (1313151551) 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, 32710 + ... + 60796.

It is an arithmetic number, because the mean of its divisors is an integer number (187627840).

Almost surely, 2^1313151511 is an apocalyptic number.

1313151511 is a deficient number, since it is larger than the sum of its proper divisors (187871209).

1313151511 is an equidigital number, since it uses as much as digits as its factorization.

1313151511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34773.

The product of its digits is 225, while the sum is 22.

The square root of 1313151511 is about 36237.4324559564. The cubic root of 1313151511 is about 1095.0609172201.

Adding to 1313151511 its reverse (1151513131), we get a palindrome (2464664642).

The spelling of 1313151511 in words is "one billion, three hundred thirteen million, one hundred fifty-one thousand, five hundred eleven".