20311210220334 has 32 divisors (see below), whose sum is σ = 44318633711616. Its totient is φ = 6154458582720.

The previous prime is 20311210220263. The next prime is 20311210220449. The reversal of 20311210220334 is 43302201211302.

It is a super-2 number, since 2×20311210220334² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10437262 + ... + 12229425.

It is an arithmetic number, because the mean of its divisors is an integer number (1384957303488).

Almost surely, 2^{20311210220334} is an apocalyptic number.

20311210220334 is an abundant number, since it is smaller than the sum of its proper divisors (24007423491282).

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

20311210220334 is a wasteful number, since it uses less digits than its factorization.

20311210220334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22680280.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20311210220334 its reverse (43302201211302), we get a palindrome (63613411431636).

The spelling of 20311210220334 in words is "twenty trillion, three hundred eleven billion, two hundred ten million, two hundred twenty thousand, three hundred thirty-four".