123012002102 has 16 divisors (see below), whose sum is σ = 203139090000. Its totient is φ = 55401567840.

The previous prime is 123012002083. The next prime is 123012002107. The reversal of 123012002102 is 201200210321.

It is a happy number.

It is a super-2 number, since 2×123012002102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012002107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25646477 + ... + 25651272.

It is an arithmetic number, because the mean of its divisors is an integer number (12696193125).

Almost surely, 2^123012002102 is an apocalyptic number.

123012002102 is a deficient number, since it is larger than the sum of its proper divisors (80127087898).

123012002102 is a wasteful number, since it uses less digits than its factorization.

123012002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51297871.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 123012002102 its reverse (201200210321), we get a palindrome (324212212423).

The spelling of 123012002102 in words is "one hundred twenty-three billion, twelve million, two thousand, one hundred two".