1421103523422 has 64 divisors (see below), whose sum is σ = 3235630841856. Its totient is φ = 411884388960.

The previous prime is 1421103523409. The next prime is 1421103523429. The reversal of 1421103523422 is 2243253011241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421103523422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421103523429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29642323 + ... + 29690225.

It is an arithmetic number, because the mean of its divisors is an integer number (50556731904).

Almost surely, 2^{1421103523422} is an apocalyptic number.

1421103523422 is an abundant number, since it is smaller than the sum of its proper divisors (1814527318434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421103523422 is a wasteful number, since it uses less digits than its factorization.

1421103523422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67485.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1421103523422 its reverse (2243253011241), we get a palindrome (3664356534663).

The spelling of 1421103523422 in words is "one trillion, four hundred twenty-one billion, one hundred three million, five hundred twenty-three thousand, four hundred twenty-two".