102251123 has 16 divisors (see below), whose sum is σ = 115407936. Its totient is φ = 89886720.

The previous prime is 102251081. The next prime is 102251137. The reversal of 102251123 is 321152201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102251123 - 2⁸ = 102250867 is a prime.

It is a super-2 number, since 2×102251123² = 20910584309522258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102251143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83411 + ... + 84627.

It is an arithmetic number, because the mean of its divisors is an integer number (7212996).

Almost surely, 2^102251123 is an apocalyptic number.

102251123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102251123 is a deficient number, since it is larger than the sum of its proper divisors (13156813).

102251123 is a wasteful number, since it uses less digits than its factorization.

102251123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 102251123 is about 10111.9297367021. The cubic root of 102251123 is about 467.6159995067.

The spelling of 102251123 in words is "one hundred two million, two hundred fifty-one thousand, one hundred twenty-three".