1131202021986 has 24 divisors (see below), whose sum is σ = 2530000222464. Its totient is φ = 364903877880.

The previous prime is 1131202021967. The next prime is 1131202021997. The reversal of 1131202021986 is 6891202021311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131202021986.

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, 1013621326 + ... + 1013622441.

It is an arithmetic number, because the mean of its divisors is an integer number (105416675936).

Almost surely, 2^{1131202021986} is an apocalyptic number.

1131202021986 is an abundant number, since it is smaller than the sum of its proper divisors (1398798200478).

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

1131202021986 is a wasteful number, since it uses less digits than its factorization.

1131202021986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027243806 (or 2027243803 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 1131202021986 in words is "one trillion, one hundred thirty-one billion, two hundred two million, twenty-one thousand, nine hundred eighty-six".