345021120543 has 32 divisors (see below), whose sum is σ = 503555899392. Its totient is φ = 208393653600.

The previous prime is 345021120497. The next prime is 345021120547.

345021120543 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 345021120543 - 2¹³ = 345021112351 is a prime.

It is a super-2 number, since 2×345021120543² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 345021120543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345021120547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12053178 + ... + 12081768.

It is an arithmetic number, because the mean of its divisors is an integer number (15736121856).

Almost surely, 2^345021120543 is an apocalyptic number.

345021120543 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

345021120543 is a deficient number, since it is larger than the sum of its proper divisors (158534778849).

345021120543 is a wasteful number, since it uses less digits than its factorization.

345021120543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29835.

The product of its (nonzero) digits is 14400, while the sum is 30.

It can be divided in two parts, 345021 and 120543, that added together give a palindrome (465564).

The spelling of 345021120543 in words is "three hundred forty-five billion, twenty-one million, one hundred twenty thousand, five hundred forty-three".