1023201031 has 4 divisors (see below), whose sum is σ = 1023543864. Its totient is φ = 1022858200.

The previous prime is 1023201013. The next prime is 1023201037. The reversal of 1023201031 is 1301023201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1301023201 = 29 ⋅44862869.

It is a cyclic number.

It is not a de Polignac number, because 1023201031 - 2⁵ = 1023200999 is a prime.

It is a super-2 number, since 2×1023201031² = 2093880699678925922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023201037) 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, 166900 + ... + 172921.

It is an arithmetic number, because the mean of its divisors is an integer number (255885966).

Almost surely, 2^1023201031 is an apocalyptic number.

1023201031 is a deficient number, since it is larger than the sum of its proper divisors (342833).

1023201031 is an equidigital number, since it uses as much as digits as its factorization.

1023201031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342832.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1023201031 is about 31987.5136733070. The cubic root of 1023201031 is about 1007.6746264309.

Adding to 1023201031 its reverse (1301023201), we get a palindrome (2324224232).

The spelling of 1023201031 in words is "one billion, twenty-three million, two hundred one thousand, thirty-one".