345211005431 has 4 divisors (see below), whose sum is σ = 353239168392. Its totient is φ = 337182842472.

The previous prime is 345211005383. The next prime is 345211005481. The reversal of 345211005431 is 134500112543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134500112543 = 227 ⋅592511509.

It is a cyclic number.

It is not a de Polignac number, because 345211005431 - 2⁶ = 345211005367 is a prime.

It is a super-2 number, since 2×345211005431² (a number of 24 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 = 345211005394 and 345211005403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345211005481) 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, 4014081416 + ... + 4014081501.

It is an arithmetic number, because the mean of its divisors is an integer number (88309792098).

Almost surely, 2^345211005431 is an apocalyptic number.

345211005431 is a deficient number, since it is larger than the sum of its proper divisors (8028162961).

345211005431 is an equidigital number, since it uses as much as digits as its factorization.

345211005431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8028162960.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 345211005431 its reverse (134500112543), we get a palindrome (479711117974).

The spelling of 345211005431 in words is "three hundred forty-five billion, two hundred eleven million, five thousand, four hundred thirty-one".