1202311431144 has 48 divisors (see below), whose sum is σ = 3447804842820. Its totient is φ = 377195742720.

The previous prime is 1202311431107. The next prime is 1202311431157. The reversal of 1202311431144 is 4411341132021.

It is a happy number.

1202311431144 is a `hidden beast` number, since 1 + 202 + 3 + 11 + 431 + 14 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1197777024900 + 4534406244 = 1094430^2 + 67338^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 491139067 + ... + 491141514.

Almost surely, 2^{1202311431144} is an apocalyptic number.

It is an amenable number.

1202311431144 is an abundant number, since it is smaller than the sum of its proper divisors (2245493411676).

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

1202311431144 is a wasteful number, since it uses less digits than its factorization.

1202311431144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982280610 (or 982280603 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1202311431144 its reverse (4411341132021), we get a palindrome (5613652563165).

The spelling of 1202311431144 in words is "one trillion, two hundred two billion, three hundred eleven million, four hundred thirty-one thousand, one hundred forty-four".