1202311331220 has 24 divisors (see below), whose sum is σ = 3366471727584. Its totient is φ = 320616354976.

The previous prime is 1202311331189. The next prime is 1202311331251. The reversal of 1202311331220 is 221331132021.

It is an interprime number because it is at equal distance from previous prime (1202311331189) and next prime (1202311331251).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10019261034 + ... + 10019261153.

It is an arithmetic number, because the mean of its divisors is an integer number (140269655316).

Almost surely, 2^{1202311331220} is an apocalyptic number.

1202311331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202311331220 is an abundant number, since it is smaller than the sum of its proper divisors (2164160396364).

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

1202311331220 is a wasteful number, since it uses less digits than its factorization.

1202311331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20038522199 (or 20038522197 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1202311331220 its reverse (221331132021), we get a palindrome (1423642463241).

The spelling of 1202311331220 in words is "one trillion, two hundred two billion, three hundred eleven million, three hundred thirty-one thousand, two hundred twenty".