42253051331 has 4 divisors (see below), whose sum is σ = 42279744672. Its totient is φ = 42226357992.

The previous prime is 42253051327. The next prime is 42253051339. The reversal of 42253051331 is 13315035224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42253051331 - 2² = 42253051327 is a prime.

It is a super-2 number, since 2×42253051331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42253051294 and 42253051303.

It is not an unprimeable number, because it can be changed into a prime (42253051339) 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, 13344296 + ... + 13347461.

It is an arithmetic number, because the mean of its divisors is an integer number (10569936168).

Almost surely, 2^42253051331 is an apocalyptic number.

42253051331 is a deficient number, since it is larger than the sum of its proper divisors (26693341).

42253051331 is a wasteful number, since it uses less digits than its factorization.

42253051331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26693340.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 42253051331 its reverse (13315035224), we get a palindrome (55568086555).

The spelling of 42253051331 in words is "forty-two billion, two hundred fifty-three million, fifty-one thousand, three hundred thirty-one".