101012020110 has 32 divisors (see below), whose sum is σ = 269365387680. Its totient is φ = 26936538624.

The previous prime is 101012020069. The next prime is 101012020141. The reversal of 101012020110 is 11020210101.

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 = 101012020092 and 101012020101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187059027 + ... + 187059566.

It is an arithmetic number, because the mean of its divisors is an integer number (8417668365).

Almost surely, 2^101012020110 is an apocalyptic number.

101012020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101012020110 is an abundant number, since it is smaller than the sum of its proper divisors (168353367570).

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

101012020110 is a wasteful number, since it uses less digits than its factorization.

101012020110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374118609 (or 374118603 counting only the distinct ones).

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

Adding to 101012020110 its reverse (11020210101), we get a palindrome (112032230211).

The spelling of 101012020110 in words is "one hundred one billion, twelve million, twenty thousand, one hundred ten".