123130231002 has 16 divisors (see below), whose sum is σ = 273622735680. Its totient is φ = 41043410316.

The previous prime is 123130230983. The next prime is 123130231013. The reversal of 123130231002 is 200132031321.

It is a super-2 number, since 2×123130231002² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140094678 + ... + 1140094785.

It is an arithmetic number, because the mean of its divisors is an integer number (17101420980).

Almost surely, 2^123130231002 is an apocalyptic number.

123130231002 is an abundant number, since it is smaller than the sum of its proper divisors (150492504678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123130231002 is a wasteful number, since it uses less digits than its factorization.

123130231002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280189474 (or 2280189468 counting only the distinct ones).

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

Adding to 123130231002 its reverse (200132031321), we get a palindrome (323262262323).

The spelling of 123130231002 in words is "one hundred twenty-three billion, one hundred thirty million, two hundred thirty-one thousand, two".