1250331505140 has 48 divisors (see below), whose sum is σ = 3502107080640. Its totient is φ = 333309461760.

The previous prime is 1250331505121. The next prime is 1250331505151. The reversal of 1250331505140 is 415051330521.

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

It is a junction number, because it is equal to n+sod(n) for n = 1250331505098 and 1250331505107.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3328785 + ... + 3685304.

It is an arithmetic number, because the mean of its divisors is an integer number (72960564180).

Almost surely, 2^{1250331505140} is an apocalyptic number.

1250331505140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250331505140 is an abundant number, since it is smaller than the sum of its proper divisors (2251775575500).

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

1250331505140 is a wasteful number, since it uses less digits than its factorization.

1250331505140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017072 (or 7017070 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 1250331505140 its reverse (415051330521), we get a palindrome (1665382835661).

The spelling of 1250331505140 in words is "one trillion, two hundred fifty billion, three hundred thirty-one million, five hundred five thousand, one hundred forty".