1020010000120 has 32 divisors (see below), whose sum is σ = 2302402021920. Its totient is φ = 406692085120.

The previous prime is 1020010000103. The next prime is 1020010000127. The reversal of 1020010000120 is 210000100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020010000127) 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, 40984747 + ... + 41009626.

It is an arithmetic number, because the mean of its divisors is an integer number (71950063185).

Almost surely, 2^{1020010000120} is an apocalyptic number.

1020010000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020010000120 is an abundant number, since it is smaller than the sum of its proper divisors (1282392021800).

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

1020010000120 is a wasteful number, since it uses less digits than its factorization.

1020010000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81994695 (or 81994691 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1020010000120 its reverse (210000100201), we get a palindrome (1230010100321).

The spelling of 1020010000120 in words is "one trillion, twenty billion, ten million, one hundred twenty", and thus it is an aban number.