1331020413101 has 4 divisors (see below), whose sum is σ = 1331161077792. Its totient is φ = 1330879748412.

The previous prime is 1331020413097. The next prime is 1331020413103. The reversal of 1331020413101 is 1013140201331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1331020413101 - 2² = 1331020413097 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 (1331020413103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70318151 + ... + 70337076.

It is an arithmetic number, because the mean of its divisors is an integer number (332790269448).

Almost surely, 2^{1331020413101} is an apocalyptic number.

It is an amenable number.

1331020413101 is a deficient number, since it is larger than the sum of its proper divisors (140664691).

1331020413101 is an equidigital number, since it uses as much as digits as its factorization.

1331020413101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140664690.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1331020413101 its reverse (1013140201331), we get a palindrome (2344160614432).

The spelling of 1331020413101 in words is "one trillion, three hundred thirty-one billion, twenty million, four hundred thirteen thousand, one hundred one".