1230202031 has 2 divisors, whose sum is σ = 1230202032. Its totient is φ = 1230202030.

The previous prime is 1230202009. The next prime is 1230202033. The reversal of 1230202031 is 1302020321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230202031 - 2²⁶ = 1163093167 is a prime.

It is a super-3 number, since 3×1230202031³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 1230202033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230201997 and 1230202015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230202033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615101015 + 615101016.

It is an arithmetic number, because the mean of its divisors is an integer number (615101016).

Almost surely, 2^1230202031 is an apocalyptic number.

1230202031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230202031 is an equidigital number, since it uses as much as digits as its factorization.

1230202031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1230202031 is about 35074.2360002324. The cubic root of 1230202031 is about 1071.4999289050.

Adding to 1230202031 its reverse (1302020321), we get a palindrome (2532222352).

It can be divided in two parts, 1 and 230202031, that added together give a palindrome (230202032).

The spelling of 1230202031 in words is "one billion, two hundred thirty million, two hundred two thousand, thirty-one".