31030212202231 has 8 divisors (see below), whose sum is σ = 33857928520704. Its totient is φ = 28203627206520.

The previous prime is 31030212202207. The next prime is 31030212202247. The reversal of 31030212202231 is 13220221203013.

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-31030212202231 is a prime.

It is a super-2 number, since 2×31030212202231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030212202291) 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, 282773335 + ... + 282883048.

It is an arithmetic number, because the mean of its divisors is an integer number (4232241065088).

Almost surely, 2^{31030212202231} is an apocalyptic number.

31030212202231 is a deficient number, since it is larger than the sum of its proper divisors (2827716318473).

31030212202231 is a wasteful number, since it uses less digits than its factorization.

31030212202231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565661381.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31030212202231 its reverse (13220221203013), we get a palindrome (44250433405244).

The spelling of 31030212202231 in words is "thirty-one trillion, thirty billion, two hundred twelve million, two hundred two thousand, two hundred thirty-one".