10302131331220 has 24 divisors (see below), whose sum is σ = 21712578607944. Its totient is φ = 4105975806336.

The previous prime is 10302131331211. The next prime is 10302131331281. The reversal of 10302131331220 is 2213313120301.

It can be written as a sum of positive squares in 4 ways, for example, as 4309134736 + 10297822196484 = 65644^2 + 3209022^2 .

It is a super-2 number, since 2×10302131331220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10302131331191 and 10302131331200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929789707 + ... + 929800786.

It is an arithmetic number, because the mean of its divisors is an integer number (904690775331).

Almost surely, 2^{10302131331220} is an apocalyptic number.

10302131331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10302131331220 is an abundant number, since it is smaller than the sum of its proper divisors (11410447276724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10302131331220 is a wasteful number, since it uses less digits than its factorization.

10302131331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859590779 (or 1859590777 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 10302131331220 its reverse (2213313120301), we get a palindrome (12515444451521).

The spelling of 10302131331220 in words is "ten trillion, three hundred two billion, one hundred thirty-one million, three hundred thirty-one thousand, two hundred twenty".