1031232040403 has 4 divisors (see below), whose sum is σ = 1091892748680. Its totient is φ = 970571332128.

The previous prime is 1031232040291. The next prime is 1031232040429. The reversal of 1031232040403 is 3040402321301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031232040403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031232040463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30330354113 + ... + 30330354146.

It is an arithmetic number, because the mean of its divisors is an integer number (272973187170).

Almost surely, 2^{1031232040403} is an apocalyptic number.

1031232040403 is a deficient number, since it is larger than the sum of its proper divisors (60660708277).

1031232040403 is an equidigital number, since it uses as much as digits as its factorization.

1031232040403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60660708276.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1031232040403 its reverse (3040402321301), we get a palindrome (4071634361704).

The spelling of 1031232040403 in words is "one trillion, thirty-one billion, two hundred thirty-two million, forty thousand, four hundred three".