42312220321 has 16 divisors (see below), whose sum is σ = 49125694464. Its totient is φ = 35694291024.

The previous prime is 42312220283. The next prime is 42312220331. The reversal of 42312220321 is 12302221324.

It is not a de Polignac number, because 42312220321 - 2⁹ = 42312219809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42312220292 and 42312220301.

It is not an unprimeable number, because it can be changed into a prime (42312220331) 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, 14350 + ... + 291256.

It is an arithmetic number, because the mean of its divisors is an integer number (3070355904).

Almost surely, 2^42312220321 is an apocalyptic number.

It is an amenable number.

42312220321 is a deficient number, since it is larger than the sum of its proper divisors (6813474143).

42312220321 is a wasteful number, since it uses less digits than its factorization.

42312220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277260.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42312220321 its reverse (12302221324), we get a palindrome (54614441645).

The spelling of 42312220321 in words is "forty-two billion, three hundred twelve million, two hundred twenty thousand, three hundred twenty-one".