1203400042 has 32 divisors (see below), whose sum is σ = 1970740800. Its totient is φ = 547803648.

The previous prime is 1203400013. The next prime is 1203400073. The reversal of 1203400042 is 2400043021.

It is a super-2 number, since 2×1203400042² = 2896343322171203528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1203399989 and 1203400025.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955209 + ... + 956467.

It is an arithmetic number, because the mean of its divisors is an integer number (61585650).

Almost surely, 2^1203400042 is an apocalyptic number.

1203400042 is a deficient number, since it is larger than the sum of its proper divisors (767340758).

1203400042 is a wasteful number, since it uses less digits than its factorization.

1203400042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1203400042 is about 34690.0568174801. The cubic root of 1203400042 is about 1063.6612571629.

Adding to 1203400042 its reverse (2400043021), we get a palindrome (3603443063).

The spelling of 1203400042 in words is "one billion, two hundred three million, four hundred thousand, forty-two".