343214432021 has 16 divisors (see below), whose sum is σ = 359828451840. Its totient is φ = 326953851840.

The previous prime is 343214431991. The next prime is 343214432051. The reversal of 343214432021 is 120234412343.

It is an interprime number because it is at equal distance from previous prime (343214431991) and next prime (343214432051).

It is a cyclic number.

It is not a de Polignac number, because 343214432021 - 2⁶ = 343214431957 is a prime.

It is a super-2 number, since 2×343214432021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343214432051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2910215 + ... + 3025851.

It is an arithmetic number, because the mean of its divisors is an integer number (22489278240).

Almost surely, 2^343214432021 is an apocalyptic number.

343214432021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

343214432021 is a deficient number, since it is larger than the sum of its proper divisors (16614019819).

343214432021 is a wasteful number, since it uses less digits than its factorization.

343214432021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117164.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 343214432021 its reverse (120234412343), we get a palindrome (463448844364).

The spelling of 343214432021 in words is "three hundred forty-three billion, two hundred fourteen million, four hundred thirty-two thousand, twenty-one".