1251230472350 has 24 divisors (see below), whose sum is σ = 2333771410320. Its totient is φ = 499098053120.

The previous prime is 1251230472251. The next prime is 1251230472379. The reversal of 1251230472350 is 532740321521.

It is a super-2 number, since 2×1251230472350² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1251230472350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34835267 + ... + 34871166.

It is an arithmetic number, because the mean of its divisors is an integer number (97240475430).

Almost surely, 2^{1251230472350} is an apocalyptic number.

1251230472350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1251230472350 is a deficient number, since it is larger than the sum of its proper divisors (1082540937970).

1251230472350 is a wasteful number, since it uses less digits than its factorization.

1251230472350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69706804 (or 69706799 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 1251230472350 its reverse (532740321521), we get a palindrome (1783970793871).

The spelling of 1251230472350 in words is "one trillion, two hundred fifty-one billion, two hundred thirty million, four hundred seventy-two thousand, three hundred fifty".