31230233020231 has 16 divisors (see below), whose sum is σ = 38279076940800. Its totient is φ = 24881400000288.

The previous prime is 31230233020219. The next prime is 31230233020243. The reversal of 31230233020231 is 13202033203213.

It is an interprime number because it is at equal distance from previous prime (31230233020219) and next prime (31230233020243).

It is a cyclic number.

It is not a de Polignac number, because 31230233020231 - 2⁵ = 31230233020199 is a prime.

It is a super-2 number, since 2×31230233020231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31230233020196 and 31230233020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230233020271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2215217311 + ... + 2215231408.

It is an arithmetic number, because the mean of its divisors is an integer number (2392442308800).

Almost surely, 2^{31230233020231} is an apocalyptic number.

31230233020231 is a deficient number, since it is larger than the sum of its proper divisors (7048843920569).

31230233020231 is a wasteful number, since it uses less digits than its factorization.

31230233020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430448798.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31230233020231 its reverse (13202033203213), we get a palindrome (44432266223444).

The spelling of 31230233020231 in words is "thirty-one trillion, two hundred thirty billion, two hundred thirty-three million, twenty thousand, two hundred thirty-one".