1310302020021 has 8 divisors (see below), whose sum is σ = 1849838145984. Its totient is φ = 822150287040.

The previous prime is 1310302019993. The next prime is 1310302020037. The reversal of 1310302020021 is 1200202030131.

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

It is not a de Polignac number, because 1310302020021 - 2²² = 1310297825717 is a prime.

It is a super-2 number, since 2×1310302020021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310302020121) 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, 12846098185 + ... + 12846098286.

It is an arithmetic number, because the mean of its divisors is an integer number (231229768248).

Almost surely, 2^{1310302020021} is an apocalyptic number.

It is an amenable number.

1310302020021 is a deficient number, since it is larger than the sum of its proper divisors (539536125963).

1310302020021 is a wasteful number, since it uses less digits than its factorization.

1310302020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25692196491.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1310302020021 its reverse (1200202030131), we get a palindrome (2510504050152).

The spelling of 1310302020021 in words is "one trillion, three hundred ten billion, three hundred two million, twenty thousand, twenty-one".