1203423240 has 32 divisors (see below), whose sum is σ = 3610270080. Its totient is φ = 320912832.

The previous prime is 1203423239. The next prime is 1203423253. The reversal of 1203423240 is 423243021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5014144 + ... + 5014383.

It is an arithmetic number, because the mean of its divisors is an integer number (112820940).

Almost surely, 2^1203423240 is an apocalyptic number.

1203423240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203423240 is an abundant number, since it is smaller than the sum of its proper divisors (2406846840).

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

1203423240 is a wasteful number, since it uses less digits than its factorization.

1203423240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10028541 (or 10028537 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1203423240 is about 34690.3911768086. The cubic root of 1203423240 is about 1063.6680918686.

Adding to 1203423240 its reverse (423243021), we get a palindrome (1626666261).

The spelling of 1203423240 in words is "one billion, two hundred three million, four hundred twenty-three thousand, two hundred forty".