101920788 has 48 divisors (see below), whose sum is σ = 278152000. Its totient is φ = 32184864.

The previous prime is 101920787. The next prime is 101920799. The reversal of 101920788 is 887029101.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101920781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22783 + ... + 26886.

Almost surely, 2^101920788 is an apocalyptic number.

101920788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

101920788 is an abundant number, since it is smaller than the sum of its proper divisors (176231212).

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

101920788 is a wasteful number, since it uses less digits than its factorization.

101920788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49701 (or 49693 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 101920788 is about 10095.5825983447. The cubic root of 101920788 is about 467.1118923287. Note that the first 3 decimals are identical.

Adding to 101920788 its reverse (887029101), we get a palindrome (988949889).

The spelling of 101920788 in words is "one hundred one million, nine hundred twenty thousand, seven hundred eighty-eight".