193400031403 has 16 divisors (see below), whose sum is σ = 196118423424. Its totient is φ = 190700326080.

The previous prime is 193400031401. The next prime is 193400031431. The reversal of 193400031403 is 304130004391.

It is a cyclic number.

It is not a de Polignac number, because 193400031403 - 2¹ = 193400031401 is a prime.

It is a super-2 number, since 2×193400031403² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193400031401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25848423 + ... + 25855903.

It is an arithmetic number, because the mean of its divisors is an integer number (12257401464).

Almost surely, 2^193400031403 is an apocalyptic number.

193400031403 is a deficient number, since it is larger than the sum of its proper divisors (2718392021).

193400031403 is a wasteful number, since it uses less digits than its factorization.

193400031403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8682.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 193400031403 its reverse (304130004391), we get a palindrome (497530035794).

The spelling of 193400031403 in words is "one hundred ninety-three billion, four hundred million, thirty-one thousand, four hundred three".