20212302123 has 48 divisors (see below), whose sum is σ = 32474149344. Its totient is φ = 12036211200.

The previous prime is 20212302119. The next prime is 20212302127. The reversal of 20212302123 is 32120321202.

It is an interprime number because it is at equal distance from previous prime (20212302119) and next prime (20212302127).

It is not a de Polignac number, because 20212302123 - 2² = 20212302119 is a prime.

It is a super-2 number, since 2×20212302123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212302096 and 20212302105.

It is not an unprimeable number, because it can be changed into a prime (20212302127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 430348 + ... + 474998.

It is an arithmetic number, because the mean of its divisors is an integer number (676544778).

Almost surely, 2^20212302123 is an apocalyptic number.

20212302123 is a deficient number, since it is larger than the sum of its proper divisors (12261847221).

20212302123 is a wasteful number, since it uses less digits than its factorization.

20212302123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44796 (or 44793 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20212302123 its reverse (32120321202), we get a palindrome (52332623325).

The spelling of 20212302123 in words is "twenty billion, two hundred twelve million, three hundred two thousand, one hundred twenty-three".