1109420091950 has 24 divisors (see below), whose sum is σ = 2066313755640. Its totient is φ = 443167524000.

The previous prime is 1109420091943. The next prime is 1109420091961. The reversal of 1109420091950 is 591900249011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1109420091898 and 1109420091907.

It is a congruent number.

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, 14975501 + ... + 15049400.

It is an arithmetic number, because the mean of its divisors is an integer number (86096406485).

Almost surely, 2^{1109420091950} is an apocalyptic number.

1109420091950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1109420091950 is a deficient number, since it is larger than the sum of its proper divisors (956893663690).

1109420091950 is a wasteful number, since it uses less digits than its factorization.

1109420091950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30025652 (or 30025647 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 41.

The spelling of 1109420091950 in words is "one trillion, one hundred nine billion, four hundred twenty million, ninety-one thousand, nine hundred fifty".