142110400421 has 16 divisors (see below), whose sum is σ = 167599498560. Its totient is φ = 119083841280.

The previous prime is 142110400379. The next prime is 142110400433. The reversal of 142110400421 is 124004011241.

It is a cyclic number.

It is not a de Polignac number, because 142110400421 - 2¹⁴ = 142110384037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142110400393 and 142110400402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142110400021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9180836 + ... + 9196301.

It is an arithmetic number, because the mean of its divisors is an integer number (10474968660).

Almost surely, 2^142110400421 is an apocalyptic number.

142110400421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142110400421 is a deficient number, since it is larger than the sum of its proper divisors (25489098139).

142110400421 is a wasteful number, since it uses less digits than its factorization.

142110400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18377204.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 142110400421 its reverse (124004011241), we get a palindrome (266114411662).

The spelling of 142110400421 in words is "one hundred forty-two billion, one hundred ten million, four hundred thousand, four hundred twenty-one".