101231123 has 16 divisors (see below), whose sum is σ = 117262080. Its totient is φ = 85602336.

The previous prime is 101231111. The next prime is 101231131. The reversal of 101231123 is 321132101.

It is a cyclic number.

It is not a de Polignac number, because 101231123 - 2¹⁶ = 101165587 is a prime.

It is a super-2 number, since 2×101231123² = 20495480527682258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101231098 and 101231107.

It is not an unprimeable number, because it can be changed into a prime (101231323) 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, 216536 + ... + 217002.

It is an arithmetic number, because the mean of its divisors is an integer number (7328880).

Almost surely, 2^101231123 is an apocalyptic number.

101231123 is a deficient number, since it is larger than the sum of its proper divisors (16030957).

101231123 is a wasteful number, since it uses less digits than its factorization.

101231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 101231123 is about 10061.3678493533. The cubic root of 101231123 is about 466.0559085481.

Adding to 101231123 its reverse (321132101), we get a palindrome (422363224).

The spelling of 101231123 in words is "one hundred one million, two hundred thirty-one thousand, one hundred twenty-three".