1312022101 has 8 divisors (see below), whose sum is σ = 1413229664. Its totient is φ = 1210854960.

The previous prime is 1312022087. The next prime is 1312022119. The reversal of 1312022101 is 1012202131.

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 1312022101 - 2²³ = 1303633493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312022161) 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, 112306 + ... + 123436.

It is an arithmetic number, because the mean of its divisors is an integer number (176653708).

Almost surely, 2^1312022101 is an apocalyptic number.

It is an amenable number.

1312022101 is a deficient number, since it is larger than the sum of its proper divisors (101207563).

1312022101 is a wasteful number, since it uses less digits than its factorization.

1312022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20211.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1312022101 is about 36221.8456321596. The cubic root of 1312022101 is about 1094.7468819945.

Adding to 1312022101 its reverse (1012202131), we get a palindrome (2324224232).

The spelling of 1312022101 in words is "one billion, three hundred twelve million, twenty-two thousand, one hundred one".