20121202023 has 48 divisors (see below), whose sum is σ = 31752262656. Its totient is φ = 11277826560.

The previous prime is 20121202001. The next prime is 20121202039. The reversal of 20121202023 is 32020212102.

It is a happy number.

It is not a de Polignac number, because 20121202023 - 2¹⁴ = 20121185639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20121201993 and 20121202011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121202063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 229536 + ... + 304842.

It is an arithmetic number, because the mean of its divisors is an integer number (661505472).

Almost surely, 2^20121202023 is an apocalyptic number.

20121202023 is a deficient number, since it is larger than the sum of its proper divisors (11631060633).

20121202023 is a wasteful number, since it uses less digits than its factorization.

20121202023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75384 (or 75371 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20121202023 its reverse (32020212102), we get a palindrome (52141414125).

The spelling of 20121202023 in words is "twenty billion, one hundred twenty-one million, two hundred two thousand, twenty-three".