1211320023199 has 64 divisors (see below), whose sum is σ = 1451473390080. Its totient is φ = 996474286080.

The previous prime is 1211320023191. The next prime is 1211320023211. The reversal of 1211320023199 is 9913200231121.

It is not a de Polignac number, because 1211320023199 - 2³ = 1211320023191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211320023191) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 703028752 + ... + 703030474.

It is an arithmetic number, because the mean of its divisors is an integer number (22679271720).

Almost surely, 2^{1211320023199} is an apocalyptic number.

1211320023199 is a deficient number, since it is larger than the sum of its proper divisors (240153366881).

1211320023199 is a wasteful number, since it uses less digits than its factorization.

1211320023199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 1211320023199 in words is "one trillion, two hundred eleven billion, three hundred twenty million, twenty-three thousand, one hundred ninety-nine".