1401331255000 has 80 divisors (see below), whose sum is σ = 3320211411000. Its totient is φ = 554234208000.

The previous prime is 1401331254929. The next prime is 1401331255003. The reversal of 1401331255000 is 5521331041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401331255003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1129530 + ... + 2019529.

Almost surely, 2^{1401331255000} is an apocalyptic number.

1401331255000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401331255000 is an abundant number, since it is smaller than the sum of its proper divisors (1918880156000).

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

1401331255000 is an equidigital number, since it uses as much as digits as its factorization.

1401331255000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149174 (or 3149155 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 1401331255000 its reverse (5521331041), we get a palindrome (1406852586041).

The spelling of 1401331255000 in words is "one trillion, four hundred one billion, three hundred thirty-one million, two hundred fifty-five thousand".