1201243315000 has 40 divisors (see below), whose sum is σ = 2814513098760. Its totient is φ = 480497324000.

The previous prime is 1201243314977. The next prime is 1201243315001. The reversal of 1201243315000 is 5133421021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201243315001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 120119332 + ... + 120129331.

It is an arithmetic number, because the mean of its divisors is an integer number (70362827469).

Almost surely, 2^{1201243315000} is an apocalyptic number.

1201243315000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201243315000 is an abundant number, since it is smaller than the sum of its proper divisors (1613269783760).

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

1201243315000 is an equidigital number, since it uses as much as digits as its factorization.

1201243315000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240248689 (or 240248670 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 1201243315000 its reverse (5133421021), we get a palindrome (1206376736021).

The spelling of 1201243315000 in words is "one trillion, two hundred one billion, two hundred forty-three million, three hundred fifteen thousand".