1020100312120 has 32 divisors (see below), whose sum is σ = 2344060296000. Its totient is φ = 399358419328.

The previous prime is 1020100312117. The next prime is 1020100312123. The reversal of 1020100312120 is 212130010201.

It is an interprime number because it is at equal distance from previous prime (1020100312117) and next prime (1020100312123).

It is a self number, because there is not a number n which added to its sum of digits gives 1020100312120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020100312123) 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, 271301395 + ... + 271305154.

It is an arithmetic number, because the mean of its divisors is an integer number (73251884250).

Almost surely, 2^{1020100312120} is an apocalyptic number.

1020100312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020100312120 is an abundant number, since it is smaller than the sum of its proper divisors (1323959983880).

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

1020100312120 is a wasteful number, since it uses less digits than its factorization.

1020100312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542606607 (or 542606603 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1020100312120 its reverse (212130010201), we get a palindrome (1232230322321).

The spelling of 1020100312120 in words is "one trillion, twenty billion, one hundred million, three hundred twelve thousand, one hundred twenty".