1321011092 has 12 divisors (see below), whose sum is σ = 2317537236. Its totient is φ = 658857600.

The previous prime is 1321011079. The next prime is 1321011101. The reversal of 1321011092 is 2901101231.

It can be written as a sum of positive squares in 2 ways, for example, as 1019780356 + 301230736 = 31934^2 + 17356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410183 + ... + 413390.

It is an arithmetic number, because the mean of its divisors is an integer number (193128103).

Almost surely, 2^1321011092 is an apocalyptic number.

It is an amenable number.

1321011092 is a deficient number, since it is larger than the sum of its proper divisors (996526144).

1321011092 is a wasteful number, since it uses less digits than its factorization.

1321011092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823978 (or 823976 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1321011092 is about 36345.7162812896. The cubic root of 1321011092 is about 1097.2413220360.

The spelling of 1321011092 in words is "one billion, three hundred twenty-one million, eleven thousand, ninety-two".