1240400032203 has 4 divisors (see below), whose sum is σ = 1653866709608. Its totient is φ = 826933354800.

The previous prime is 1240400032171. The next prime is 1240400032213. The reversal of 1240400032203 is 3022300040421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1240400032203 - 2⁵ = 1240400032171 is a prime.

It is a super-3 number, since 3×1240400032203³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240400032203.

It is not an unprimeable number, because it can be changed into a prime (1240400032213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206733338698 + ... + 206733338703.

It is an arithmetic number, because the mean of its divisors is an integer number (413466677402).

Almost surely, 2^{1240400032203} is an apocalyptic number.

1240400032203 is a deficient number, since it is larger than the sum of its proper divisors (413466677405).

1240400032203 is an equidigital number, since it uses as much as digits as its factorization.

1240400032203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413466677404.

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

Adding to 1240400032203 its reverse (3022300040421), we get a palindrome (4262700072624).

The spelling of 1240400032203 in words is "one trillion, two hundred forty billion, four hundred million, thirty-two thousand, two hundred three".