1312023011 has 8 divisors (see below), whose sum is σ = 1434037584. Its totient is φ = 1193021280.

The previous prime is 1312023007. The next prime is 1312023077. The reversal of 1312023011 is 1103202131.

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

It is a cyclic number.

It is not a de Polignac number, because 1312023011 - 2² = 1312023007 is a prime.

It is a super-2 number, since 2×1312023011² = 3442808762787012242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312023091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752300 + ... + 754041.

It is an arithmetic number, because the mean of its divisors is an integer number (179254698).

Almost surely, 2^1312023011 is an apocalyptic number.

1312023011 is a deficient number, since it is larger than the sum of its proper divisors (122014573).

1312023011 is a wasteful number, since it uses less digits than its factorization.

1312023011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506421.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312023011 is about 36221.8581936377. The cubic root of 1312023011 is about 1094.7471350948.

Adding to 1312023011 its reverse (1103202131), we get a palindrome (2415225142).

The spelling of 1312023011 in words is "one billion, three hundred twelve million, twenty-three thousand, eleven".