123112431150 has 96 divisors (see below), whose sum is σ = 307366086240. Its totient is φ = 32610209280.

The previous prime is 123112431119. The next prime is 123112431151. The reversal of 123112431150 is 51134211321.

It is a self number, because there is not a number n which added to its sum of digits gives 123112431150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123112431151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53689404 + ... + 53691696.

It is an arithmetic number, because the mean of its divisors is an integer number (3201730065).

Almost surely, 2^123112431150 is an apocalyptic number.

123112431150 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 123112431150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153683043120).

123112431150 is an abundant number, since it is smaller than the sum of its proper divisors (184253655090).

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

123112431150 is a wasteful number, since it uses less digits than its factorization.

123112431150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4550 (or 4545 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 123112431150 its reverse (51134211321), we get a palindrome (174246642471).

The spelling of 123112431150 in words is "one hundred twenty-three billion, one hundred twelve million, four hundred thirty-one thousand, one hundred fifty".