2161711342 has 12 divisors (see below), whose sum is σ = 3771965880. Its totient is φ = 926447676.

The previous prime is 2161711297. The next prime is 2161711397. The reversal of 2161711342 is 2431171612.

It is a super-2 number, since 2×2161711342² = 9345991852262881928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2161711342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11029042 + ... + 11029237.

It is an arithmetic number, because the mean of its divisors is an integer number (314330490).

Almost surely, 2^2161711342 is an apocalyptic number.

2161711342 is a deficient number, since it is larger than the sum of its proper divisors (1610254538).

2161711342 is a wasteful number, since it uses less digits than its factorization.

2161711342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22058295 (or 22058288 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 2161711342 is about 46494.2076177237. The cubic root of 2161711342 is about 1293.0021104344.

Adding to 2161711342 its reverse (2431171612), we get a palindrome (4592882954).

The spelling of 2161711342 in words is "two billion, one hundred sixty-one million, seven hundred eleven thousand, three hundred forty-two".