234213131021 has 8 divisors (see below), whose sum is σ = 242406316800. Its totient is φ = 226059815520.

The previous prime is 234213130999. The next prime is 234213131039. The reversal of 234213131021 is 120131312432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 234213131021 - 2¹⁴ = 234213114637 is a prime.

It is a super-2 number, since 2×234213131021² (a number of 24 digits) 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 (234213131041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9955616 + ... + 9979113.

It is an arithmetic number, because the mean of its divisors is an integer number (30300789600).

Almost surely, 2^234213131021 is an apocalyptic number.

It is an amenable number.

234213131021 is a deficient number, since it is larger than the sum of its proper divisors (8193185779).

234213131021 is a wasteful number, since it uses less digits than its factorization.

234213131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19935139.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 234213131021 its reverse (120131312432), we get a palindrome (354344443453).

The spelling of 234213131021 in words is "two hundred thirty-four billion, two hundred thirteen million, one hundred thirty-one thousand, twenty-one".