67242031403 has 4 divisors (see below), whose sum is σ = 68245643880. Its totient is φ = 66238418928.

The previous prime is 67242031399. The next prime is 67242031429. The reversal of 67242031403 is 30413024276.

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

It is a cyclic number.

It is not a de Polignac number, because 67242031403 - 2² = 67242031399 is a prime.

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 67242031403.

It is not an unprimeable number, because it can be changed into a prime (67242031303) 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, 501806138 + ... + 501806271.

It is an arithmetic number, because the mean of its divisors is an integer number (17061410970).

Almost surely, 2^67242031403 is an apocalyptic number.

67242031403 is a deficient number, since it is larger than the sum of its proper divisors (1003612477).

67242031403 is a wasteful number, since it uses less digits than its factorization.

67242031403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003612476.

The product of its (nonzero) digits is 24192, while the sum is 32.

Adding to 67242031403 its reverse (30413024276), we get a palindrome (97655055679).

The spelling of 67242031403 in words is "sixty-seven billion, two hundred forty-two million, thirty-one thousand, four hundred three".