31203002011 has 16 divisors (see below), whose sum is σ = 32297097600. Its totient is φ = 30130109568.

The previous prime is 31203001979. The next prime is 31203002027. The reversal of 31203002011 is 11020030213.

It is not a de Polignac number, because 31203002011 - 2⁵ = 31203001979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31203001982 and 31203002000.

It is not an unprimeable number, because it can be changed into a prime (31203002041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1315525 + ... + 1339033.

It is an arithmetic number, because the mean of its divisors is an integer number (2018568600).

Almost surely, 2^31203002011 is an apocalyptic number.

31203002011 is a deficient number, since it is larger than the sum of its proper divisors (1094095589).

31203002011 is a wasteful number, since it uses less digits than its factorization.

31203002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23958.

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

Adding to 31203002011 its reverse (11020030213), we get a palindrome (42223032224).

The spelling of 31203002011 in words is "thirty-one billion, two hundred three million, two thousand, eleven".