423454405234153 has 4 divisors (see below), whose sum is σ = 438056281276740. Its totient is φ = 408852529191568.

The previous prime is 423454405234097. The next prime is 423454405234171. The reversal of 423454405234153 is 351432504454324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70468016397529 + 352986388836624 = 8394523^2 + 18787932^2 .

It is a cyclic number.

It is not a de Polignac number, because 423454405234153 - 2²⁵ = 423454371679721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423454405234097 and 423454405234106.

It is not an unprimeable number, because it can be changed into a prime (423454405234193) 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, 7300938021250 + ... + 7300938021307.

It is an arithmetic number, because the mean of its divisors is an integer number (109514070319185).

Almost surely, 2^{423454405234153} is an apocalyptic number.

It is an amenable number.

423454405234153 is a deficient number, since it is larger than the sum of its proper divisors (14601876042587).

423454405234153 is a wasteful number, since it uses less digits than its factorization.

423454405234153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14601876042586.

The product of its (nonzero) digits is 13824000, while the sum is 49.

Adding to 423454405234153 its reverse (351432504454324), we get a palindrome (774886909688477).

The spelling of 423454405234153 in words is "four hundred twenty-three trillion, four hundred fifty-four billion, four hundred five million, two hundred thirty-four thousand, one hundred fifty-three".