1312001011 has 8 divisors (see below), whose sum is σ = 1318752864. Its totient is φ = 1305263040.

The previous prime is 1312000999. The next prime is 1312001021. The reversal of 1312001011 is 1101002131.

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 1312001011 - 2⁵ = 1312000979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312001021) 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, 222481 + ... + 228301.

It is an arithmetic number, because the mean of its divisors is an integer number (164844108).

Almost surely, 2^1312001011 is an apocalyptic number.

1312001011 is a deficient number, since it is larger than the sum of its proper divisors (6751853).

1312001011 is an equidigital number, since it uses as much as digits as its factorization.

1312001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6941.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1312001011 is about 36221.5545083311. The cubic root of 1312001011 is about 1094.7410161545.

Adding to 1312001011 its reverse (1101002131), we get a palindrome (2413003142).

The spelling of 1312001011 in words is "one billion, three hundred twelve million, one thousand, eleven".