12205553431 has 8 divisors (see below), whose sum is σ = 12848976000. Its totient is φ = 11562233400.

The previous prime is 12205553429. The next prime is 12205553441. The reversal of 12205553431 is 13435550221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12205553431 - 2¹ = 12205553429 is a prime.

It is a super-2 number, since 2×12205553431² (a number of 21 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 = 12205553393 and 12205553402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205553441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400470 + ... + 429868.

It is an arithmetic number, because the mean of its divisors is an integer number (1606122000).

Almost surely, 2^12205553431 is an apocalyptic number.

12205553431 is a deficient number, since it is larger than the sum of its proper divisors (643422569).

12205553431 is a wasteful number, since it uses less digits than its factorization.

12205553431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51269.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 12205553431 in words is "twelve billion, two hundred five million, five hundred fifty-three thousand, four hundred thirty-one".