349703621031 has 8 divisors (see below), whose sum is σ = 466299377280. Its totient is φ = 233121806072.

The previous prime is 349703621027. The next prime is 349703621123. The reversal of 349703621031 is 130126307943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 349703621031 - 2² = 349703621027 is a prime.

It is a super-2 number, since 2×349703621031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349703621021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3426651 + ... + 3527228.

It is an arithmetic number, because the mean of its divisors is an integer number (58287422160).

Almost surely, 2^349703621031 is an apocalyptic number.

349703621031 is a deficient number, since it is larger than the sum of its proper divisors (116595756249).

349703621031 is a wasteful number, since it uses less digits than its factorization.

349703621031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970645.

The product of its (nonzero) digits is 81648, while the sum is 39.

Adding to 349703621031 its reverse (130126307943), we get a palindrome (479829928974).

The spelling of 349703621031 in words is "three hundred forty-nine billion, seven hundred three million, six hundred twenty-one thousand, thirty-one".