2031660123 has 16 divisors (see below), whose sum is σ = 2869161120. Its totient is φ = 1274351616.

The previous prime is 2031660119. The next prime is 2031660133. The reversal of 2031660123 is 3210661302.

It is a happy number.

It is not a de Polignac number, because 2031660123 - 2² = 2031660119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2031660093 and 2031660102.

It is not an unprimeable number, because it can be changed into a prime (2031660133) 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, 249411 + ... + 257427.

It is an arithmetic number, because the mean of its divisors is an integer number (179322570).

Almost surely, 2^2031660123 is an apocalyptic number.

2031660123 is a deficient number, since it is larger than the sum of its proper divisors (837500997).

2031660123 is a wasteful number, since it uses less digits than its factorization.

2031660123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13006.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2031660123 is about 45073.9406198304. The cubic root of 2031660123 is about 1266.5344839059.

The spelling of 2031660123 in words is "two billion, thirty-one million, six hundred sixty thousand, one hundred twenty-three".