31303230221121 has 8 divisors (see below), whose sum is σ = 41739255069600. Its totient is φ = 20868012760032.

The previous prime is 31303230221119. The next prime is 31303230221213. The reversal of 31303230221121 is 12112203230313.

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

It is not a de Polignac number, because 31303230221121 - 2¹ = 31303230221119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31303230221091 and 31303230221100.

It is not an unprimeable number, because it can be changed into a prime (31303230221111) 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, 201756375 + ... + 201911468.

It is an arithmetic number, because the mean of its divisors is an integer number (5217406883700).

Almost surely, 2^{31303230221121} is an apocalyptic number.

It is an amenable number.

31303230221121 is a deficient number, since it is larger than the sum of its proper divisors (10436024848479).

31303230221121 is a wasteful number, since it uses less digits than its factorization.

31303230221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403693695.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31303230221121 its reverse (12112203230313), we get a palindrome (43415433451434).

The spelling of 31303230221121 in words is "thirty-one trillion, three hundred three billion, two hundred thirty million, two hundred twenty-one thousand, one hundred twenty-one".