1672111031 has 4 divisors (see below), whose sum is σ = 1675885992. Its totient is φ = 1668336072.

The previous prime is 1672111009. The next prime is 1672111061. The reversal of 1672111031 is 1301112761.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1672111031 - 2¹⁰ = 1672110007 is a prime.

It is a super-2 number, since 2×1672111031² = 5591910599983765922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1672110988 and 1672111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672111061) 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, 1886816 + ... + 1887701.

It is an arithmetic number, because the mean of its divisors is an integer number (418971498).

Almost surely, 2^1672111031 is an apocalyptic number.

1672111031 is a deficient number, since it is larger than the sum of its proper divisors (3774961).

1672111031 is an equidigital number, since it uses as much as digits as its factorization.

1672111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774960.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 1672111031 is about 40891.4542539147. The cubic root of 1672111031 is about 1186.9206998420.

Adding to 1672111031 its reverse (1301112761), we get a palindrome (2973223792).

The spelling of 1672111031 in words is "one billion, six hundred seventy-two million, one hundred eleven thousand, thirty-one".