101123330440 has 64 divisors (see below), whose sum is σ = 249498092160. Its totient is φ = 36581560320.

The previous prime is 101123330411. The next prime is 101123330447. The reversal of 101123330440 is 44033321101.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (101123330447) 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, 510484 + ... + 680323.

It is an arithmetic number, because the mean of its divisors is an integer number (3898407690).

Almost surely, 2^101123330440 is an apocalyptic number.

101123330440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101123330440 is an abundant number, since it is smaller than the sum of its proper divisors (148374761720).

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

101123330440 is a wasteful number, since it uses less digits than its factorization.

101123330440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191022 (or 1191018 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 101123330440 its reverse (44033321101), we get a palindrome (145156651541).

The spelling of 101123330440 in words is "one hundred one billion, one hundred twenty-three million, three hundred thirty thousand, four hundred forty".