101123144 has 8 divisors (see below), whose sum is σ = 189605910. Its totient is φ = 50561568.

The previous prime is 101123137. The next prime is 101123159. The reversal of 101123144 is 441321101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74476900 + 26646244 = 8630^2 + 5162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6320189 + ... + 6320204.

Almost surely, 2^101123144 is an apocalyptic number.

It is an amenable number.

101123144 is a deficient number, since it is larger than the sum of its proper divisors (88482766).

101123144 is a wasteful number, since it uses less digits than its factorization.

101123144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12640399 (or 12640395 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 101123144 is about 10056.0003977725. Note that the first 3 decimals coincide. The cubic root of 101123144 is about 465.8901421547.

Adding to 101123144 its reverse (441321101), we get a palindrome (542444245).

The spelling of 101123144 in words is "one hundred one million, one hundred twenty-three thousand, one hundred forty-four".