193041642523 has 2 divisors, whose sum is σ = 193041642524. Its totient is φ = 193041642522.

The previous prime is 193041642509. The next prime is 193041642557. The reversal of 193041642523 is 325246140391.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193041642523 is a prime.

It is not a weakly prime, because it can be changed into another prime (193041642023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96520821261 + 96520821262.

It is an arithmetic number, because the mean of its divisors is an integer number (96520821262).

Almost surely, 2^193041642523 is an apocalyptic number.

193041642523 is a deficient number, since it is larger than the sum of its proper divisors (1).

193041642523 is an equidigital number, since it uses as much as digits as its factorization.

193041642523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 193041642523 in words is "one hundred ninety-three billion, forty-one million, six hundred forty-two thousand, five hundred twenty-three".