130212031 has 4 divisors (see below), whose sum is σ = 130292272. Its totient is φ = 130131792.

The previous prime is 130212013. The next prime is 130212067.

130212031 is nontrivially palindromic in base 10.

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 130212031 - 2⁵ = 130211999 is a prime.

It is a super-2 number, since 2×130212031² = 33910346034289922, 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 (130212011) 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, 37635 + ... + 40948.

It is an arithmetic number, because the mean of its divisors is an integer number (32573068).

Almost surely, 2^130212031 is an apocalyptic number.

130212031 is a deficient number, since it is larger than the sum of its proper divisors (80241).

130212031 is an equidigital number, since it uses as much as digits as its factorization.

130212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80240.

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

The square root of 130212031 is about 11411.0486371762. The cubic root of 130212031 is about 506.8549641096.

The spelling of 130212031 in words is "one hundred thirty million, two hundred twelve thousand, thirty-one".