11959869034 has 4 divisors (see below), whose sum is σ = 17939803554. Its totient is φ = 5979934516.

The previous prime is 11959869023. The next prime is 11959869073. The reversal of 11959869034 is 43096895911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43096895911 = 29 ⋅1486099859.

It can be written as a sum of positive squares in only one way, i.e., 8648442009 + 3311427025 = 92997^2 + 57545^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2989967257 + ... + 2989967260.

Almost surely, 2^11959869034 is an apocalyptic number.

11959869034 is a deficient number, since it is larger than the sum of its proper divisors (5979934520).

11959869034 is an equidigital number, since it uses as much as digits as its factorization.

11959869034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5979934519.

The product of its (nonzero) digits is 2099520, while the sum is 55.

It can be divided in two parts, 119 and 59869034, that added together give a triangular number (59869153 = T₁₀₉₄₂).

The spelling of 11959869034 in words is "eleven billion, nine hundred fifty-nine million, eight hundred sixty-nine thousand, thirty-four".