2231123042 has 4 divisors (see below), whose sum is σ = 3346684566. Its totient is φ = 1115561520.

The previous prime is 2231123023. The next prime is 2231123057. The reversal of 2231123042 is 2403211322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2403211322 = 2 ⋅1201605661.

It can be written as a sum of positive squares in only one way, i.e., 1118166721 + 1112956321 = 33439^2 + 33361^2 .

It is a super-3 number, since 3×2231123042³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557780759 + ... + 557780762.

Almost surely, 2^2231123042 is an apocalyptic number.

2231123042 is a deficient number, since it is larger than the sum of its proper divisors (1115561524).

2231123042 is a wasteful number, since it uses less digits than its factorization.

2231123042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115561523.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2231123042 is about 47234.7651841311. The cubic root of 2231123042 is about 1306.6958359649.

Adding to 2231123042 its reverse (2403211322), we get a palindrome (4634334364).

It can be divided in two parts, 223112 and 3042, that multiplied together give a square (678706704 = 26052²).

The spelling of 2231123042 in words is "two billion, two hundred thirty-one million, one hundred twenty-three thousand, forty-two".