1203994407000 has 768 divisors, whose sum is σ = 4756198487040. Its totient is φ = 248202240000.

The previous prime is 1203994406983. The next prime is 1203994407017. The reversal of 1203994407000 is 7044993021.

It is an interprime number because it is at equal distance from previous prime (1203994406983) and next prime (1203994407017).

It is a self number, because there is not a number n which added to its sum of digits gives 1203994407000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 332869192 + ... + 332872808.

It is an arithmetic number, because the mean of its divisors is an integer number (6192966780).

Almost surely, 2^{1203994407000} is an apocalyptic number.

1203994407000 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 1203994407000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2378099243520).

1203994407000 is an abundant number, since it is smaller than the sum of its proper divisors (3552204080040).

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

1203994407000 is a wasteful number, since it uses less digits than its factorization.

1203994407000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801 (or 3776 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 1203994407000 in words is "one trillion, two hundred three billion, nine hundred ninety-four million, four hundred seven thousand".