42211002123 has 20 divisors (see below), whose sum is σ = 63205769088. Its totient is φ = 28073802960.

The previous prime is 42211002121. The next prime is 42211002133. The reversal of 42211002123 is 32120011224.

It is a happy number.

It is not a de Polignac number, because 42211002123 - 2¹ = 42211002121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42211002096 and 42211002105.

It is not an unprimeable number, because it can be changed into a prime (42211002121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 584811 + ... + 653012.

Almost surely, 2^42211002123 is an apocalyptic number.

42211002123 is a deficient number, since it is larger than the sum of its proper divisors (20994766965).

42211002123 is a wasteful number, since it uses less digits than its factorization.

42211002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238256 (or 1238247 counting only the distinct ones).

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

Adding to 42211002123 its reverse (32120011224), we get a palindrome (74331013347).

The spelling of 42211002123 in words is "forty-two billion, two hundred eleven million, two thousand, one hundred twenty-three".