200121112023031 has 2 divisors, whose sum is σ = 200121112023032. Its totient is φ = 200121112023030.

The previous prime is 200121112023023. The next prime is 200121112023059. The reversal of 200121112023031 is 130320211121002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200121112023031 - 2³ = 200121112023023 is a prime.

It is a super-2 number, since 2×200121112023031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200121112021031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060556011515 + 100060556011516.

It is an arithmetic number, because the mean of its divisors is an integer number (100060556011516).

Almost surely, 2^{200121112023031} is an apocalyptic number.

200121112023031 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121112023031 is an equidigital number, since it uses as much as digits as its factorization.

200121112023031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 200121112023031 its reverse (130320211121002), we get a palindrome (330441323144033).

The spelling of 200121112023031 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twelve million, twenty-three thousand, thirty-one".