1250420331040 has 96 divisors (see below), whose sum is σ = 3129114530304. Its totient is φ = 470562140160.

The previous prime is 1250420331031. The next prime is 1250420331101. The reversal of 1250420331040 is 401330240521.

It is a junction number, because it is equal to n+sod(n) for n = 1250420330996 and 1250420331014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6958807 + ... + 7136233.

It is an arithmetic number, because the mean of its divisors is an integer number (32594943024).

Almost surely, 2^{1250420331040} is an apocalyptic number.

1250420331040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1250420331040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1564557265152).

1250420331040 is an abundant number, since it is smaller than the sum of its proper divisors (1878694199264).

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

1250420331040 is a wasteful number, since it uses less digits than its factorization.

1250420331040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180050 (or 180042 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 1250420331040 its reverse (401330240521), we get a palindrome (1651750571561).

The spelling of 1250420331040 in words is "one trillion, two hundred fifty billion, four hundred twenty million, three hundred thirty-one thousand, forty".