123131102 has 16 divisors (see below), whose sum is σ = 200111472. Its totient is φ = 56595840.

The previous prime is 123131093. The next prime is 123131131. The reversal of 123131102 is 201131321.

It is a super-2 number, since 2×123131102² = 30322536559468808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40649 + ... + 43572.

It is an arithmetic number, because the mean of its divisors is an integer number (12506967).

Almost surely, 2^123131102 is an apocalyptic number.

123131102 is a deficient number, since it is larger than the sum of its proper divisors (76980370).

123131102 is a wasteful number, since it uses less digits than its factorization.

123131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84283.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 123131102 is about 11096.4454669052. The cubic root of 123131102 is about 497.4956130351.

Adding to 123131102 its reverse (201131321), we get a palindrome (324262423).

The spelling of 123131102 in words is "one hundred twenty-three million, one hundred thirty-one thousand, one hundred two".