1091210290930 has 16 divisors (see below), whose sum is σ = 2009857094784. Its totient is φ = 426333322800.

The previous prime is 1091210290879. The next prime is 1091210290949. The reversal of 1091210290930 is 390920121901.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1091210290930.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268848746 + ... + 1268849605.

It is an arithmetic number, because the mean of its divisors is an integer number (125616068424).

Almost surely, 2^{1091210290930} is an apocalyptic number.

1091210290930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1091210290930 is a deficient number, since it is larger than the sum of its proper divisors (918646803854).

1091210290930 is a wasteful number, since it uses less digits than its factorization.

1091210290930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537698401.

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 1091210290930 in words is "one trillion, ninety-one billion, two hundred ten million, two hundred ninety thousand, nine hundred thirty".