213231130232109 has 16 divisors (see below), whose sum is σ = 310227885166080. Its totient is φ = 129200357219760.

The previous prime is 213231130232101. The next prime is 213231130232117. The reversal of 213231130232109 is 901232031132312.

It is an interprime number because it is at equal distance from previous prime (213231130232101) and next prime (213231130232117).

It is not a de Polignac number, because 213231130232109 - 2³ = 213231130232101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 213231130232109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213231130232101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765628657 + ... + 765907110.

It is an arithmetic number, because the mean of its divisors is an integer number (19389242822880).

Almost surely, 2^{213231130232109} is an apocalyptic number.

It is an amenable number.

213231130232109 is a deficient number, since it is larger than the sum of its proper divisors (96996754933971).

213231130232109 is a wasteful number, since it uses less digits than its factorization.

213231130232109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531540000.

The product of its (nonzero) digits is 11664, while the sum is 33.

The spelling of 213231130232109 in words is "two hundred thirteen trillion, two hundred thirty-one billion, one hundred thirty million, two hundred thirty-two thousand, one hundred nine".