1312020101 has 8 divisors (see below), whose sum is σ = 1587654720. Its totient is φ = 1058436288.

The previous prime is 1312020097. The next prime is 1312020103. The reversal of 1312020101 is 1010202131.

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

It is not a de Polignac number, because 1312020101 - 2² = 1312020097 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 (1312020103) 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, 5512571 + ... + 5512808.

It is an arithmetic number, because the mean of its divisors is an integer number (198456840).

Almost surely, 2^1312020101 is an apocalyptic number.

It is an amenable number.

1312020101 is a deficient number, since it is larger than the sum of its proper divisors (275634619).

1312020101 is a wasteful number, since it uses less digits than its factorization.

1312020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11025403.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1312020101 is about 36221.8180245001. The cubic root of 1312020101 is about 1094.7463257298.

Adding to 1312020101 its reverse (1010202131), we get a palindrome (2322222232).

The spelling of 1312020101 in words is "one billion, three hundred twelve million, twenty thousand, one hundred one".