345011431 has 16 divisors (see below), whose sum is σ = 372695040. Its totient is φ = 318447360.

The previous prime is 345011423. The next prime is 345011509. The reversal of 345011431 is 134110543.

It is a cyclic number.

It is not a de Polignac number, because 345011431 - 2³ = 345011423 is a prime.

It is a super-2 number, since 2×345011431² = 238065775041335522, which 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 (345015431) 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, 479490 + ... + 480208.

It is an arithmetic number, because the mean of its divisors is an integer number (23293440).

Almost surely, 2^345011431 is an apocalyptic number.

345011431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

345011431 is a deficient number, since it is larger than the sum of its proper divisors (27683609).

345011431 is a wasteful number, since it uses less digits than its factorization.

345011431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 345011431 is about 18574.4833306340. The cubic root of 345011431 is about 701.3656543729.

Adding to 345011431 its reverse (134110543), we get a palindrome (479121974).

The spelling of 345011431 in words is "three hundred forty-five million, eleven thousand, four hundred thirty-one".