123131001102 has 16 divisors (see below), whose sum is σ = 246297473280. Its totient is φ = 41037755192.

The previous prime is 123131001089. The next prime is 123131001121. The reversal of 123131001102 is 201100131321.

It is a happy number.

It is a super-2 number, since 2×123131001102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 1432728 + ... + 1516235.

It is an arithmetic number, because the mean of its divisors is an integer number (15393592080).

Almost surely, 2^123131001102 is an apocalyptic number.

123131001102 is an abundant number, since it is smaller than the sum of its proper divisors (123166472178).

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

123131001102 is a wasteful number, since it uses less digits than its factorization.

123131001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955927.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 123131001102 its reverse (201100131321), we get a palindrome (324231132423).

The spelling of 123131001102 in words is "one hundred twenty-three billion, one hundred thirty-one million, one thousand, one hundred two".