20213310156 has 48 divisors (see below), whose sum is σ = 53000795904. Its totient is φ = 5949066816.

The previous prime is 20213310121. The next prime is 20213310157. The reversal of 20213310156 is 65101331202.

It is not an unprimeable number, because it can be changed into a prime (20213310157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2813206 + ... + 2820381.

It is an arithmetic number, because the mean of its divisors is an integer number (1104183248).

Almost surely, 2^20213310156 is an apocalyptic number.

20213310156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20213310156 is an abundant number, since it is smaller than the sum of its proper divisors (32787485748).

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

20213310156 is a wasteful number, since it uses less digits than its factorization.

20213310156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5633630 (or 5633628 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 20213310156 its reverse (65101331202), we get a palindrome (85314641358).

The spelling of 20213310156 in words is "twenty billion, two hundred thirteen million, three hundred ten thousand, one hundred fifty-six".