231002202123 has 48 divisors (see below), whose sum is σ = 416061724416. Its totient is φ = 119984483520.

The previous prime is 231002202061. The next prime is 231002202131. The reversal of 231002202123 is 321202200132.

231002202123 is a `hidden beast` number, since 231 + 0 + 0 + 220 + 212 + 3 = 666.

It is not a de Polignac number, because 231002202123 - 2¹⁰ = 231002201099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231002202096 and 231002202105.

It is not an unprimeable number, because it can be changed into a prime (231002202163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6164961 + ... + 6202317.

It is an arithmetic number, because the mean of its divisors is an integer number (8667952592).

Almost surely, 2^231002202123 is an apocalyptic number.

231002202123 is a deficient number, since it is larger than the sum of its proper divisors (185059522293).

231002202123 is a wasteful number, since it uses less digits than its factorization.

231002202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46304 (or 46301 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 231002202123 its reverse (321202200132), we get a palindrome (552204402255).

The spelling of 231002202123 in words is "two hundred thirty-one billion, two million, two hundred two thousand, one hundred twenty-three".