1209023894211 has 32 divisors (see below), whose sum is σ = 1903336574976. Its totient is φ = 668027520000.

The previous prime is 1209023894209. The next prime is 1209023894257. The reversal of 1209023894211 is 1124983209021.

It is not a de Polignac number, because 1209023894211 - 2¹ = 1209023894209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1209023894291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8671 + ... + 1555031.

It is an arithmetic number, because the mean of its divisors is an integer number (59479267968).

Almost surely, 2^{1209023894211} is an apocalyptic number.

1209023894211 is a deficient number, since it is larger than the sum of its proper divisors (694312680765).

1209023894211 is a wasteful number, since it uses less digits than its factorization.

1209023894211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547603.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 1209023894211 in words is "one trillion, two hundred nine billion, twenty-three million, eight hundred ninety-four thousand, two hundred eleven".