120100020000989 has 32 divisors (see below), whose sum is σ = 145253087723520. Its totient is φ = 97077650072832.

The previous prime is 120100020000967. The next prime is 120100020001037. The reversal of 120100020000989 is 989000020001021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120100020000989 - 2³² = 120095725033693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120100020000689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2980652 + ... + 15782405.

It is an arithmetic number, because the mean of its divisors is an integer number (4539158991360).

Almost surely, 2^{120100020000989} is an apocalyptic number.

It is an amenable number.

120100020000989 is a deficient number, since it is larger than the sum of its proper divisors (25153067722531).

120100020000989 is a wasteful number, since it uses less digits than its factorization.

120100020000989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18763649.

The product of its (nonzero) digits is 2592, while the sum is 32.

Adding to 120100020000989 its sum of digits (32), we get a palindrome (120100020001021).

The spelling of 120100020000989 in words is "one hundred twenty trillion, one hundred billion, twenty million, nine hundred eighty-nine", and thus it is an aban number.