31420203012231 has 8 divisors (see below), whose sum is σ = 45702113472384. Its totient is φ = 19042547280120.

The previous prime is 31420203012223. The next prime is 31420203012257. The reversal of 31420203012231 is 13221030202413.

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

It is not a de Polignac number, because 31420203012231 - 2³ = 31420203012223 is a prime.

It is a super-2 number, since 2×31420203012231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420203012271) 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, 476063681971 + ... + 476063682036.

It is an arithmetic number, because the mean of its divisors is an integer number (5712764184048).

Almost surely, 2^{31420203012231} is an apocalyptic number.

31420203012231 is a deficient number, since it is larger than the sum of its proper divisors (14281910460153).

31420203012231 is a wasteful number, since it uses less digits than its factorization.

31420203012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952127364021.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31420203012231 its reverse (13221030202413), we get a palindrome (44641233214644).

The spelling of 31420203012231 in words is "thirty-one trillion, four hundred twenty billion, two hundred three million, twelve thousand, two hundred thirty-one".