101102111990 has 16 divisors (see below), whose sum is σ = 198527783760. Its totient is φ = 36764404320.

The previous prime is 101102111989. The next prime is 101102111993. The reversal of 101102111990 is 99111201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101102111993) 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, 459554945 + ... + 459555164.

It is an arithmetic number, because the mean of its divisors is an integer number (12407986485).

Almost surely, 2^101102111990 is an apocalyptic number.

101102111990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101102111990 is a deficient number, since it is larger than the sum of its proper divisors (97425671770).

101102111990 is a wasteful number, since it uses less digits than its factorization.

101102111990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919110127.

The product of its (nonzero) digits is 162, while the sum is 26.

The spelling of 101102111990 in words is "one hundred one billion, one hundred two million, one hundred eleven thousand, nine hundred ninety".