421102342342 has 16 divisors (see below), whose sum is σ = 702078006672. Its totient is φ = 187798642720.

The previous prime is 421102342303. The next prime is 421102342369. The reversal of 421102342342 is 243243201124.

It is a self number, because there is not a number n which added to its sum of digits gives 421102342342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180574453 + ... + 180576784.

It is an arithmetic number, because the mean of its divisors is an integer number (43879875417).

Almost surely, 2^421102342342 is an apocalyptic number.

421102342342 is a deficient number, since it is larger than the sum of its proper divisors (280975664330).

421102342342 is a wasteful number, since it uses less digits than its factorization.

421102342342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361151303.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 421102342342 its reverse (243243201124), we get a palindrome (664345543466).

The spelling of 421102342342 in words is "four hundred twenty-one billion, one hundred two million, three hundred forty-two thousand, three hundred forty-two".