123051225810 has 128 divisors (see below), whose sum is σ = 309755674368. Its totient is φ = 31256064000.

The previous prime is 123051225809. The next prime is 123051225821. The reversal of 123051225810 is 18522150321.

It is a super-2 number, since 2×123051225810² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10273125 + ... + 10285095.

It is an arithmetic number, because the mean of its divisors is an integer number (2419966206).

Almost surely, 2^123051225810 is an apocalyptic number.

123051225810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123051225810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154877837184).

123051225810 is an abundant number, since it is smaller than the sum of its proper divisors (186704448558).

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

123051225810 is a wasteful number, since it uses less digits than its factorization.

123051225810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12220.

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 123051225810 in words is "one hundred twenty-three billion, fifty-one million, two hundred twenty-five thousand, eight hundred ten".