31403104211 has 16 divisors (see below), whose sum is σ = 33596071488. Its totient is φ = 29280345600.

The previous prime is 31403104193. The next prime is 31403104223. The reversal of 31403104211 is 11240130413.

It is a cyclic number.

It is not a de Polignac number, because 31403104211 - 2²² = 31398909907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31403104231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153031 + ... + 1179951.

It is an arithmetic number, because the mean of its divisors is an integer number (2099754468).

Almost surely, 2^31403104211 is an apocalyptic number.

31403104211 is a deficient number, since it is larger than the sum of its proper divisors (2192967277).

31403104211 is a wasteful number, since it uses less digits than its factorization.

31403104211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28222.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31403104211 its reverse (11240130413), we get a palindrome (42643234624).

The spelling of 31403104211 in words is "thirty-one billion, four hundred three million, one hundred four thousand, two hundred eleven".