1303122311988 has 48 divisors (see below), whose sum is σ = 3475657551744. Its totient is φ = 372249440640.

The previous prime is 1303122311971. The next prime is 1303122311989. The reversal of 1303122311988 is 8891132213031.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303122311989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041223 + ... + 1921038.

It is an arithmetic number, because the mean of its divisors is an integer number (72409532328).

Almost surely, 2^{1303122311988} is an apocalyptic number.

It is an amenable number.

1303122311988 is an abundant number, since it is smaller than the sum of its proper divisors (2172535239756).

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

1303122311988 is a wasteful number, since it uses less digits than its factorization.

1303122311988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967512 (or 2967510 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 1303122311988 in words is "one trillion, three hundred three billion, one hundred twenty-two million, three hundred eleven thousand, nine hundred eighty-eight".