101130031 has 4 divisors (see below), whose sum is σ = 101349864. Its totient is φ = 100910200.

The previous prime is 101130017. The next prime is 101130037. The reversal of 101130031 is 130031101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130031101 = 53 ⋅2453417.

It is a cyclic number.

It is not a de Polignac number, because 101130031 - 2⁵ = 101129999 is a prime.

It is a super-2 number, since 2×101130031² = 20454566340121922, 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 (101130037) 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, 109225 + ... + 110146.

It is an arithmetic number, because the mean of its divisors is an integer number (25337466).

Almost surely, 2^101130031 is an apocalyptic number.

101130031 is a deficient number, since it is larger than the sum of its proper divisors (219833).

101130031 is an equidigital number, since it uses as much as digits as its factorization.

101130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219832.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 101130031 is about 10056.3428243075. The cubic root of 101130031 is about 465.9007184100.

Adding to 101130031 its reverse (130031101), we get a palindrome (231161132).

It can be divided in two parts, 101 and 130031, that multiplied together give a palindrome (13133131).

The spelling of 101130031 in words is "one hundred one million, one hundred thirty thousand, thirty-one".