102010323123 has 12 divisors (see below), whose sum is σ = 147367913160. Its totient is φ = 67997804256.

The previous prime is 102010323091. The next prime is 102010323139. The reversal of 102010323123 is 321323010201.

It is not a de Polignac number, because 102010323123 - 2⁵ = 102010323091 is a prime.

It is a super-2 number, since 2×102010323123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102010323096 and 102010323105.

It is not an unprimeable number, because it can be changed into a prime (102010321123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 684961 + ... + 820482.

It is an arithmetic number, because the mean of its divisors is an integer number (12280659430).

Almost surely, 2^102010323123 is an apocalyptic number.

102010323123 is a deficient number, since it is larger than the sum of its proper divisors (45357590037).

102010323123 is a wasteful number, since it uses less digits than its factorization.

102010323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512978 (or 1512975 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 102010323123 its reverse (321323010201), we get a palindrome (423333333324).

The spelling of 102010323123 in words is "one hundred two billion, ten million, three hundred twenty-three thousand, one hundred twenty-three".