20313213310 has 64 divisors (see below), whose sum is σ = 41752065600. Its totient is φ = 7053530112.

The previous prime is 20313213281. The next prime is 20313213313. The reversal of 20313213310 is 1331231302.

It is a super-2 number, since 2×20313213310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313213313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308376 + ... + 368404.

It is an arithmetic number, because the mean of its divisors is an integer number (652376025).

Almost surely, 2^20313213310 is an apocalyptic number.

20313213310 is an abundant number, since it is smaller than the sum of its proper divisors (21438852290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20313213310 is a wasteful number, since it uses less digits than its factorization.

20313213310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60205.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20313213310 its reverse (1331231302), we get a palindrome (21644444612).

The spelling of 20313213310 in words is "twenty billion, three hundred thirteen million, two hundred thirteen thousand, three hundred ten".