2113212042 has 12 divisors (see below), whose sum is σ = 4578626130. Its totient is φ = 704404008.

The previous prime is 2113212029. The next prime is 2113212097. The reversal of 2113212042 is 2402123112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2061069201 + 52142841 = 45399^2 + 7221^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 117400669 = 2113212042 / (2 + 1 + 1 + 3 + 2 + 1 + 2 + 0 + 4 + 2).

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, 58700317 + ... + 58700352.

Almost surely, 2^2113212042 is an apocalyptic number.

2113212042 is an abundant number, since it is smaller than the sum of its proper divisors (2465414088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113212042 is a wasteful number, since it uses less digits than its factorization.

2113212042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117400677 (or 117400674 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2113212042 is about 45969.6861203119. The cubic root of 2113212042 is about 1283.2591185433.

Adding to 2113212042 its reverse (2402123112), we get a palindrome (4515335154).

The spelling of 2113212042 in words is "two billion, one hundred thirteen million, two hundred twelve thousand, forty-two".