10120100011020 has 144 divisors (see below), whose sum is σ = 30759302814240. Its totient is φ = 2693274624000.

The previous prime is 10120100011019. The next prime is 10120100011027. The reversal of 10120100011020 is 2011000102101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10120100010993 and 10120100011011.

It is not an unprimeable number, because it can be changed into a prime (10120100011027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 493436526 + ... + 493457034.

Almost surely, 2^{10120100011020} is an apocalyptic number.

10120100011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10120100011020 is an abundant number, since it is smaller than the sum of its proper divisors (20639202803220).

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

10120100011020 is a wasteful number, since it uses less digits than its factorization.

10120100011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25896 (or 25891 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10120100011020 its reverse (2011000102101), we get a palindrome (12131100113121).

The spelling of 10120100011020 in words is "ten trillion, one hundred twenty billion, one hundred million, eleven thousand, twenty".