31103133120230 has 16 divisors (see below), whose sum is σ = 56004159564864. Its totient is φ = 12437137704000.

The previous prime is 31103133120223. The next prime is 31103133120233. The reversal of 31103133120230 is 3202133130113.

It is a junction number, because it is equal to n+sod(n) for n = 31103133120196 and 31103133120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103133120233) 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, 514411271 + ... + 514471730.

It is an arithmetic number, because the mean of its divisors is an integer number (3500259972804).

Almost surely, 2^{31103133120230} is an apocalyptic number.

31103133120230 is a deficient number, since it is larger than the sum of its proper divisors (24901026444634).

31103133120230 is a wasteful number, since it uses less digits than its factorization.

31103133120230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028886031.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31103133120230 its reverse (3202133130113), we get a palindrome (34305266250343).

The spelling of 31103133120230 in words is "thirty-one trillion, one hundred three billion, one hundred thirty-three million, one hundred twenty thousand, two hundred thirty".