1310011201021 has 8 divisors (see below), whose sum is σ = 1388811062520. Its totient is φ = 1231404715008.

The previous prime is 1310011201019. The next prime is 1310011201063. The reversal of 1310011201021 is 1201021100131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 188604329796 + 1121406871225 = 434286^2 + 1058965^2 .

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 1310011201021 - 2¹ = 1310011201019 is a prime.

It is a super-2 number, since 2×1310011201021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310011200992 and 1310011201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310011201091) 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, 48329916 + ... + 48357013.

It is an arithmetic number, because the mean of its divisors is an integer number (173601382815).

Almost surely, 2^{1310011201021} is an apocalyptic number.

It is an amenable number.

1310011201021 is a deficient number, since it is larger than the sum of its proper divisors (78799861499).

1310011201021 is an equidigital number, since it uses as much as digits as its factorization.

1310011201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96687743.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1310011201021 its reverse (1201021100131), we get a palindrome (2511032301152).

The spelling of 1310011201021 in words is "one trillion, three hundred ten billion, eleven million, two hundred one thousand, twenty-one".