1320012988 has 12 divisors (see below), whose sum is σ = 2640026032. Its totient is φ = 565719840.

The previous prime is 1320012979. The next prime is 1320012989. The reversal of 1320012988 is 8892100231.

1320012988 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320012989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23571633 + ... + 23571688.

Almost surely, 2^1320012988 is an apocalyptic number.

It is an amenable number.

1320012988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1320012988 is a wasteful number, since it uses less digits than its factorization.

1320012988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47143332 (or 47143330 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1320012988 is about 36331.9829901975. The cubic root of 1320012988 is about 1096.9649082862.

The spelling of 1320012988 in words is "one billion, three hundred twenty million, twelve thousand, nine hundred eighty-eight".