1203423442 has 16 divisors (see below), whose sum is σ = 1946394072. Its totient is φ = 554739840.

The previous prime is 1203423401. The next prime is 1203423449. The reversal of 1203423442 is 2443243021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 319015321 + 884408121 = 17861^2 + 29739^2 .

It is not an unprimeable number, because it can be changed into a prime (1203423449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6843 + ... + 49534.

Almost surely, 2^1203423442 is an apocalyptic number.

1203423442 is a deficient number, since it is larger than the sum of its proper divisors (742970630).

1203423442 is a wasteful number, since it uses less digits than its factorization.

1203423442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57213.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1203423442 is about 34690.3940882775. The cubic root of 1203423442 is about 1063.6681513824.

Adding to 1203423442 its reverse (2443243021), we get a palindrome (3646666463).

The spelling of 1203423442 in words is "one billion, two hundred three million, four hundred twenty-three thousand, four hundred forty-two".