123033131 has 16 divisors (see below), whose sum is σ = 142285248. Its totient is φ = 105369600.

The previous prime is 123033107. The next prime is 123033179. The reversal of 123033131 is 131330321.

123033131 = T₂₁₇₁ + T₂₁₇₂ + ... + T₂₂₂₁.

It is a cyclic number.

It is not a de Polignac number, because 123033131 - 2⁶ = 123033067 is a prime.

It is a super-2 number, since 2×123033131² = 30274302647326322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123033181) 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, 11771 + ... + 19611.

It is an arithmetic number, because the mean of its divisors is an integer number (8892828).

Almost surely, 2^123033131 is an apocalyptic number.

123033131 is a deficient number, since it is larger than the sum of its proper divisors (19252117).

123033131 is a wasteful number, since it uses less digits than its factorization.

123033131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7942.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 123033131 is about 11092.0300666740. The cubic root of 123033131 is about 497.3636315547.

Adding to 123033131 its reverse (131330321), we get a palindrome (254363452).

The spelling of 123033131 in words is "one hundred twenty-three million, thirty-three thousand, one hundred thirty-one".