31402223111 has 8 divisors (see below), whose sum is σ = 35891896320. Its totient is φ = 26913460248.

The previous prime is 31402223093. The next prime is 31402223213. The reversal of 31402223111 is 11132220413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31402223111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402220111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151991 + ... + 293096.

It is an arithmetic number, because the mean of its divisors is an integer number (4486487040).

Almost surely, 2^31402223111 is an apocalyptic number.

31402223111 is a deficient number, since it is larger than the sum of its proper divisors (4489673209).

31402223111 is a wasteful number, since it uses less digits than its factorization.

31402223111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455173.

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

Adding to 31402223111 its reverse (11132220413), we get a palindrome (42534443524).

The spelling of 31402223111 in words is "thirty-one billion, four hundred two million, two hundred twenty-three thousand, one hundred eleven".