2130213233531 has 8 divisors (see below), whose sum is σ = 2146218790464. Its totient is φ = 2114258895360.

The previous prime is 2130213233417. The next prime is 2130213233593. The reversal of 2130213233531 is 1353323120312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130213233531 is a prime.

It is a super-2 number, since 2×2130213233531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2130213233494 and 2130213233503.

It is not an unprimeable number, because it can be changed into a prime (2130213233831) 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, 12721196 + ... + 12887561.

It is an arithmetic number, because the mean of its divisors is an integer number (268277348808).

Almost surely, 2^{2130213233531} is an apocalyptic number.

2130213233531 is a deficient number, since it is larger than the sum of its proper divisors (16005556933).

2130213233531 is a wasteful number, since it uses less digits than its factorization.

2130213233531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25609381.

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 2130213233531 its reverse (1353323120312), we get a palindrome (3483536353843).

The spelling of 2130213233531 in words is "two trillion, one hundred thirty billion, two hundred thirteen million, two hundred thirty-three thousand, five hundred thirty-one".