354253213431 has 12 divisors (see below), whose sum is σ = 551060554408. Its totient is φ = 218001977424.

The previous prime is 354253213339. The next prime is 354253213441. The reversal of 354253213431 is 134312352453.

354253213431 is a `hidden beast` number, since 3 + 5 + 4 + 2 + 5 + 3 + 213 + 431 = 666.

It is not a de Polignac number, because 354253213431 - 2⁹ = 354253212919 is a prime.

It is a super-3 number, since 3×354253213431³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354253213441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1513902505 + ... + 1513902738.

Almost surely, 2^354253213431 is an apocalyptic number.

354253213431 is a deficient number, since it is larger than the sum of its proper divisors (196807340977).

354253213431 is a wasteful number, since it uses less digits than its factorization.

354253213431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027805262 (or 3027805259 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

Adding to 354253213431 its reverse (134312352453), we get a palindrome (488565565884).

The spelling of 354253213431 in words is "three hundred fifty-four billion, two hundred fifty-three million, two hundred thirteen thousand, four hundred thirty-one".