31120002020203 has 2 divisors, whose sum is σ = 31120002020204. Its totient is φ = 31120002020202.

The previous prime is 31120002020171. The next prime is 31120002020281. The reversal of 31120002020203 is 30202020002113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31120002020203 - 2⁵ = 31120002020171 is a prime.

It is a super-2 number, since 2×31120002020203² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31120002020293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15560001010101 + 15560001010102.

It is an arithmetic number, because the mean of its divisors is an integer number (15560001010102).

Almost surely, 2^{31120002020203} is an apocalyptic number.

31120002020203 is a deficient number, since it is larger than the sum of its proper divisors (1).

31120002020203 is an equidigital number, since it uses as much as digits as its factorization.

31120002020203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31120002020203 its reverse (30202020002113), we get a palindrome (61322022022316).

The spelling of 31120002020203 in words is "thirty-one trillion, one hundred twenty billion, two million, twenty thousand, two hundred three".