2101002021320 has 32 divisors (see below), whose sum is σ = 4736882401920. Its totient is φ = 838689190080.

The previous prime is 2101002021317. The next prime is 2101002021323. The reversal of 2101002021320 is 231202001012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2101002021317) and next prime (2101002021323).

It is a junction number, because it is equal to n+sod(n) for n = 2101002021295 and 2101002021304.

It is not an unprimeable number, because it can be changed into a prime (2101002021323) 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, 53468192 + ... + 53507471.

It is an arithmetic number, because the mean of its divisors is an integer number (148027575060).

Almost surely, 2^{2101002021320} is an apocalyptic number.

2101002021320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101002021320 is an abundant number, since it is smaller than the sum of its proper divisors (2635880380600).

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

2101002021320 is a wasteful number, since it uses less digits than its factorization.

2101002021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106976165 (or 106976161 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2101002021320 its reverse (231202001012), we get a palindrome (2332204022332).

The spelling of 2101002021320 in words is "two trillion, one hundred one billion, two million, twenty-one thousand, three hundred twenty".