31430122101 has 24 divisors (see below), whose sum is σ = 51903618624. Its totient is φ = 17953502400.

The previous prime is 31430122067. The next prime is 31430122103. The reversal of 31430122101 is 10122103413.

It is not a de Polignac number, because 31430122101 - 2⁶ = 31430122037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430122103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85126 + ... + 264776.

It is an arithmetic number, because the mean of its divisors is an integer number (2162650776).

Almost surely, 2^31430122101 is an apocalyptic number.

It is an amenable number.

31430122101 is a deficient number, since it is larger than the sum of its proper divisors (20473496523).

31430122101 is a wasteful number, since it uses less digits than its factorization.

31430122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182441 (or 182438 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31430122101 its reverse (10122103413), we get a palindrome (41552225514).

The spelling of 31430122101 in words is "thirty-one billion, four hundred thirty million, one hundred twenty-two thousand, one hundred one".