42301421421 has 16 divisors (see below), whose sum is σ = 65830785024. Its totient is φ = 23657937264.

The previous prime is 42301421401. The next prime is 42301421509. The reversal of 42301421421 is 12412410324.

It is not a de Polignac number, because 42301421421 - 2⁵ = 42301421389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42301421391 and 42301421400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42301421401) 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, 21428305 + ... + 21430278.

It is an arithmetic number, because the mean of its divisors is an integer number (4114424064).

Almost surely, 2^42301421421 is an apocalyptic number.

It is an amenable number.

42301421421 is a deficient number, since it is larger than the sum of its proper divisors (23529363603).

42301421421 is a wasteful number, since it uses less digits than its factorization.

42301421421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42858640.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 42301421421 its reverse (12412410324), we get a palindrome (54713831745).

The spelling of 42301421421 in words is "forty-two billion, three hundred one million, four hundred twenty-one thousand, four hundred twenty-one".