31120020200303 has 4 divisors (see below), whose sum is σ = 31347173632560. Its totient is φ = 30892866768048.

The previous prime is 31120020200287. The next prime is 31120020200309. The reversal of 31120020200303 is 30300202002113.

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 31120020200303 - 2⁴ = 31120020200287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120020200309) 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, 113576715923 + ... + 113576716196.

It is an arithmetic number, because the mean of its divisors is an integer number (7836793408140).

Almost surely, 2^{31120020200303} is an apocalyptic number.

31120020200303 is a deficient number, since it is larger than the sum of its proper divisors (227153432257).

31120020200303 is a wasteful number, since it uses less digits than its factorization.

31120020200303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227153432256.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31120020200303 its reverse (30300202002113), we get a palindrome (61420222202416).

The spelling of 31120020200303 in words is "thirty-one trillion, one hundred twenty billion, twenty million, two hundred thousand, three hundred three".