42113211010421 has 4 divisors (see below), whose sum is σ = 42113229961152. Its totient is φ = 42113192059692.

The previous prime is 42113211010411. The next prime is 42113211010433. The reversal of 42113211010421 is 12401011231124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42113211010421 - 2⁶ = 42113211010357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42113211010411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5618765 + ... + 10760898.

It is an arithmetic number, because the mean of its divisors is an integer number (10528307490288).

Almost surely, 2^{42113211010421} is an apocalyptic number.

It is an amenable number.

42113211010421 is a deficient number, since it is larger than the sum of its proper divisors (18950731).

42113211010421 is a wasteful number, since it uses less digits than its factorization.

42113211010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18950730.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 42113211010421 its reverse (12401011231124), we get a palindrome (54514222241545).

The spelling of 42113211010421 in words is "forty-two trillion, one hundred thirteen billion, two hundred eleven million, ten thousand, four hundred twenty-one".