31103213102030 has 8 divisors (see below), whose sum is σ = 55985783583672. Its totient is φ = 12441285240808.

The previous prime is 31103213102021. The next prime is 31103213102033. The reversal of 31103213102030 is 3020131230113.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31103213101993 and 31103213102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103213102033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555160655092 + ... + 1555160655111.

It is an arithmetic number, because the mean of its divisors is an integer number (6998222947959).

Almost surely, 2^{31103213102030} is an apocalyptic number.

31103213102030 is a deficient number, since it is larger than the sum of its proper divisors (24882570481642).

31103213102030 is a wasteful number, since it uses less digits than its factorization.

31103213102030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110321310210.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31103213102030 its reverse (3020131230113), we get a palindrome (34123344332143).

The spelling of 31103213102030 in words is "thirty-one trillion, one hundred three billion, two hundred thirteen million, one hundred two thousand, thirty".