1203100040 has 16 divisors (see below), whose sum is σ = 2706975180. Its totient is φ = 481240000.

The previous prime is 1203100027. The next prime is 1203100091. The reversal of 1203100040 is 400013021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1194255364 + 8844676 = 34558^2 + 2974^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1203099994 and 1203100030.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15038711 + ... + 15038790.

Almost surely, 2^1203100040 is an apocalyptic number.

1203100040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203100040 is an abundant number, since it is smaller than the sum of its proper divisors (1503875140).

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

1203100040 is a wasteful number, since it uses less digits than its factorization.

1203100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30077512 (or 30077508 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1203100040 is about 34685.7325135278. The cubic root of 1203100040 is about 1063.5728612254.

Adding to 1203100040 its reverse (400013021), we get a palindrome (1603113061).

The spelling of 1203100040 in words is "one billion, two hundred three million, one hundred thousand, forty".