101211020203 has 2 divisors, whose sum is σ = 101211020204. Its totient is φ = 101211020202.

The previous prime is 101211020201. The next prime is 101211020279. The reversal of 101211020203 is 302020112101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101211020203 - 2¹ = 101211020201 is a prime.

It is a super-2 number, since 2×101211020203² (a number of 23 digits) contains 22 as substring.

Together with 101211020201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (101211020201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605510101 + 50605510102.

It is an arithmetic number, because the mean of its divisors is an integer number (50605510102).

Almost surely, 2^101211020203 is an apocalyptic number.

101211020203 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211020203 is an equidigital number, since it uses as much as digits as its factorization.

101211020203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101211020203 its reverse (302020112101), we get a palindrome (403231132304).

The spelling of 101211020203 in words is "one hundred one billion, two hundred eleven million, twenty thousand, two hundred three".