105351031 has 4 divisors (see below), whose sum is σ = 105492064. Its totient is φ = 105210000.

The previous prime is 105351013. The next prime is 105351047. The reversal of 105351031 is 130153501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130153501 = 373 ⋅348937.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105351031 is a prime.

It is a super-2 number, since 2×105351031² = 22197679465525922, 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 (105351061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69390 + ... + 70891.

It is an arithmetic number, because the mean of its divisors is an integer number (26373016).

Almost surely, 2^105351031 is an apocalyptic number.

105351031 is a deficient number, since it is larger than the sum of its proper divisors (141033).

105351031 is an equidigital number, since it uses as much as digits as its factorization.

105351031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141032.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 105351031 is about 10264.0650329195. The cubic root of 105351031 is about 472.2945455784.

The spelling of 105351031 in words is "one hundred five million, three hundred fifty-one thousand, thirty-one".