203210102101 has 4 divisors (see below), whose sum is σ = 203213977804. Its totient is φ = 203206226400.

The previous prime is 203210102059. The next prime is 203210102107. The reversal of 203210102101 is 101201012302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 140081027076 + 63129075025 = 374274^2 + 251255^2 .

It is a cyclic number.

It is not a de Polignac number, because 203210102101 - 2²³ = 203201713493 is a prime.

It is a super-2 number, since 2×203210102101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203210102107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858110 + ... + 1964431.

It is an arithmetic number, because the mean of its divisors is an integer number (50803494451).

Almost surely, 2^203210102101 is an apocalyptic number.

It is an amenable number.

203210102101 is a deficient number, since it is larger than the sum of its proper divisors (3875703).

203210102101 is an equidigital number, since it uses as much as digits as its factorization.

203210102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875702.

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

Adding to 203210102101 its reverse (101201012302), we get a palindrome (304411114403).

The spelling of 203210102101 in words is "two hundred three billion, two hundred ten million, one hundred two thousand, one hundred one".