20213213031310 has 16 divisors (see below), whose sum is σ = 39182536030176. Its totient is φ = 7463340196128.

The previous prime is 20213213031287. The next prime is 20213213031313. The reversal of 20213213031310 is 1313031231202.

It is a super-2 number, since 2×20213213031310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213213031313) 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, 77743126914 + ... + 77743127173.

It is an arithmetic number, because the mean of its divisors is an integer number (2448908501886).

Almost surely, 2^{20213213031310} is an apocalyptic number.

20213213031310 is a deficient number, since it is larger than the sum of its proper divisors (18969322998866).

20213213031310 is a wasteful number, since it uses less digits than its factorization.

20213213031310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155486254107.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20213213031310 its reverse (1313031231202), we get a palindrome (21526244262512).

The spelling of 20213213031310 in words is "twenty trillion, two hundred thirteen billion, two hundred thirteen million, thirty-one thousand, three hundred ten".