213003131310321 has 16 divisors (see below), whose sum is σ = 310235283406848. Its totient is φ = 128920912290000.

The previous prime is 213003131310317. The next prime is 213003131310349. The reversal of 213003131310321 is 123013131300312.

It is not a de Polignac number, because 213003131310321 - 2² = 213003131310317 is a prime.

It is a super-2 number, since 2×213003131310321² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213003131310291 and 213003131310300.

It is not an unprimeable number, because it can be changed into a prime (213003131310301) 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, 4297338961 + ... + 4297388526.

It is an arithmetic number, because the mean of its divisors is an integer number (19389705212928).

Almost surely, 2^{213003131310321} is an apocalyptic number.

It is an amenable number.

213003131310321 is a deficient number, since it is larger than the sum of its proper divisors (97232152096527).

213003131310321 is a wasteful number, since it uses less digits than its factorization.

213003131310321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8594728252.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 213003131310321 its reverse (123013131300312), we get a palindrome (336016262610633).

The spelling of 213003131310321 in words is "two hundred thirteen trillion, three billion, one hundred thirty-one million, three hundred ten thousand, three hundred twenty-one".