101211030203 has 4 divisors (see below), whose sum is σ = 101214499488. Its totient is φ = 101207560920.

The previous prime is 101211030143. The next prime is 101211030229. The reversal of 101211030203 is 302030112101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101211030203 - 2²⁴ = 101194252987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101211030103) 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 3 ways as a sum of consecutive naturals, for example, 1690508 + ... + 1749353.

It is an arithmetic number, because the mean of its divisors is an integer number (25303624872).

Almost surely, 2^101211030203 is an apocalyptic number.

101211030203 is a deficient number, since it is larger than the sum of its proper divisors (3469285).

101211030203 is an equidigital number, since it uses as much as digits as its factorization.

101211030203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469284.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 101211030203 its reverse (302030112101), we get a palindrome (403241142304).

The spelling of 101211030203 in words is "one hundred one billion, two hundred eleven million, thirty thousand, two hundred three".