345103031 has 12 divisors (see below), whose sum is σ = 432327672. Its totient is φ = 273048048.

The previous prime is 345103019. The next prime is 345103039. The reversal of 345103031 is 130301543.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-345103031 is a prime.

It is a super-2 number, since 2×345103031² = 238192204010773922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345102994 and 345103012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345103039) 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, 270245 + ... + 271518.

It is an arithmetic number, because the mean of its divisors is an integer number (36027306).

Almost surely, 2^345103031 is an apocalyptic number.

345103031 is a deficient number, since it is larger than the sum of its proper divisors (87224641).

345103031 is a wasteful number, since it uses less digits than its factorization.

345103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541790 (or 541783 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 345103031 is about 18576.9489152552. The cubic root of 345103031 is about 701.4277193784.

Adding to 345103031 its reverse (130301543), we get a palindrome (475404574).

The spelling of 345103031 in words is "three hundred forty-five million, one hundred three thousand, thirty-one".