1251350112150 has 192 divisors, whose sum is σ = 3565468938240. Its totient is φ = 322378099200.

The previous prime is 1251350112149. The next prime is 1251350112179. The reversal of 1251350112150 is 512110531521.

It is a happy number.

1251350112150 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 3 + 501 + 1 + 2 + 150 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24791839 + ... + 24842261.

It is an arithmetic number, because the mean of its divisors is an integer number (18570150720).

Almost surely, 2^{1251350112150} is an apocalyptic number.

1251350112150 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 1251350112150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782734469120).

1251350112150 is an abundant number, since it is smaller than the sum of its proper divisors (2314118826090).

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

1251350112150 is a wasteful number, since it uses less digits than its factorization.

1251350112150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51068 (or 51057 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 1251350112150 its reverse (512110531521), we get a palindrome (1763460643671).

The spelling of 1251350112150 in words is "one trillion, two hundred fifty-one billion, three hundred fifty million, one hundred twelve thousand, one hundred fifty".