101111020120 has 32 divisors (see below), whose sum is σ = 248181595920. Its totient is φ = 36767643520.

The previous prime is 101111020097. The next prime is 101111020121. The reversal of 101111020120 is 21020111101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 101111020097 and 101111020106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111020121) 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, 114898447 + ... + 114899326.

Almost surely, 2^101111020120 is an apocalyptic number.

101111020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111020120 is an abundant number, since it is smaller than the sum of its proper divisors (147070575800).

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

101111020120 is a wasteful number, since it uses less digits than its factorization.

101111020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229797795 (or 229797791 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101111020120 its reverse (21020111101), we get a palindrome (122131131221).

The spelling of 101111020120 in words is "one hundred one billion, one hundred eleven million, twenty thousand, one hundred twenty".