213203111194 has 16 divisors (see below), whose sum is σ = 339839164008. Its totient is φ = 99968666112.

The previous prime is 213203111179. The next prime is 213203111207. The reversal of 213203111194 is 491111302312.

213203111194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 173368140625 + 39834970569 = 416375^2 + 199587^2 .

It is a super-2 number, since 2×213203111194² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11309499 + ... + 11328334.

Almost surely, 2^213203111194 is an apocalyptic number.

213203111194 is a deficient number, since it is larger than the sum of its proper divisors (126636052814).

213203111194 is a wasteful number, since it uses less digits than its factorization.

213203111194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22638129.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 213203111194 in words is "two hundred thirteen billion, two hundred three million, one hundred eleven thousand, one hundred ninety-four".