101231120 has 40 divisors (see below), whose sum is σ = 242960640. Its totient is φ = 39185280.

The previous prime is 101231111. The next prime is 101231131. The reversal of 101231120 is 21132101.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17930 + ... + 22889.

It is an arithmetic number, because the mean of its divisors is an integer number (6074016).

Almost surely, 2^101231120 is an apocalyptic number.

101231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101231120 is an abundant number, since it is smaller than the sum of its proper divisors (141729520).

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

101231120 is a wasteful number, since it uses less digits than its factorization.

101231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40863 (or 40857 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 101231120 is about 10061.3677002682. The cubic root of 101231120 is about 466.0559039442.

Adding to 101231120 its reverse (21132101), we get a palindrome (122363221).

The spelling of 101231120 in words is "one hundred one million, two hundred thirty-one thousand, one hundred twenty".