20311002223101 has 72 divisors (see below), whose sum is σ = 31598973020160. Its totient is φ = 12568064979456.

The previous prime is 20311002223091. The next prime is 20311002223111. The reversal of 20311002223101 is 10132220011302.

20311002223101 is a `hidden beast` number, since 2 + 0 + 31 + 100 + 222 + 310 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (20311002223091) and next prime (20311002223111).

It is not a de Polignac number, because 20311002223101 - 2²⁶ = 20310935114237 is a prime.

It is a super-2 number, since 2×20311002223101² (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 (20311002223111) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 54980515 + ... + 55348703.

It is an arithmetic number, because the mean of its divisors is an integer number (438874625280).

Almost surely, 2^{20311002223101} is an apocalyptic number.

It is an amenable number.

20311002223101 is a deficient number, since it is larger than the sum of its proper divisors (11287970797059).

20311002223101 is a wasteful number, since it uses less digits than its factorization.

20311002223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368523 (or 368503 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20311002223101 its reverse (10132220011302), we get a palindrome (30443222234403).

The spelling of 20311002223101 in words is "twenty trillion, three hundred eleven billion, two million, two hundred twenty-three thousand, one hundred one".