202122143123 has 16 divisors (see below), whose sum is σ = 209522661120. Its totient is φ = 194777587200.

The previous prime is 202122143101. The next prime is 202122143143. The reversal of 202122143123 is 321341221202.

It is a cyclic number.

It is not a de Polignac number, because 202122143123 - 2¹⁶ = 202122077587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202122143143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14880311 + ... + 14893887.

It is an arithmetic number, because the mean of its divisors is an integer number (13095166320).

Almost surely, 2^202122143123 is an apocalyptic number.

202122143123 is a deficient number, since it is larger than the sum of its proper divisors (7400517997).

202122143123 is a wasteful number, since it uses less digits than its factorization.

202122143123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15598.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 202122143123 its reverse (321341221202), we get a palindrome (523463364325).

The spelling of 202122143123 in words is "two hundred two billion, one hundred twenty-two million, one hundred forty-three thousand, one hundred twenty-three".