101120100020001 has 12 divisors (see below), whose sum is σ = 148538000030160. Its totient is φ = 66270800012760.

The previous prime is 101120100019979. The next prime is 101120100020063. The reversal of 101120100020001 is 100020001021101.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-101120100020001 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (101120100220001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95216666155 + ... + 95216667216.

It is an arithmetic number, because the mean of its divisors is an integer number (12378166669180).

Almost surely, 2^{101120100020001} is an apocalyptic number.

It is an amenable number.

101120100020001 is a deficient number, since it is larger than the sum of its proper divisors (47417900010159).

101120100020001 is a wasteful number, since it uses less digits than its factorization.

101120100020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190433333436 (or 190433333433 counting only the distinct ones).

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

Adding to 101120100020001 its reverse (100020001021101), we get a palindrome (201140101041102).

The spelling of 101120100020001 in words is "one hundred one trillion, one hundred twenty billion, one hundred million, twenty thousand, one".