102006031 has 4 divisors (see below), whose sum is σ = 102026232. Its totient is φ = 101985832.

The previous prime is 102006017. The next prime is 102006043. The reversal of 102006031 is 130600201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 102006031 - 2⁵ = 102005999 is a prime.

It is a super-2 number, since 2×102006031² = 20810460720745922, 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 (102006011) 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, 4956 + ... + 15118.

It is an arithmetic number, because the mean of its divisors is an integer number (25506558).

Almost surely, 2^102006031 is an apocalyptic number.

102006031 is a deficient number, since it is larger than the sum of its proper divisors (20201).

102006031 is a wasteful number, since it uses less digits than its factorization.

102006031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20200.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 102006031 is about 10099.8035129402. The cubic root of 102006031 is about 467.2420814170.

Adding to 102006031 its reverse (130600201), we get a palindrome (232606232).

The spelling of 102006031 in words is "one hundred two million, six thousand, thirty-one".