31424222031 has 8 divisors (see below), whose sum is σ = 42180164400. Its totient is φ = 20808880512.

The previous prime is 31424222017. The next prime is 31424222051. The reversal of 31424222031 is 13022242413.

It is a happy number.

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

It is not a de Polignac number, because 31424222031 - 2¹⁰ = 31424221007 is a prime.

It is a super-2 number, since 2×31424222031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31424221992 and 31424222010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424222051) 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, 35149690 + ... + 35150583.

It is an arithmetic number, because the mean of its divisors is an integer number (5272520550).

Almost surely, 2^31424222031 is an apocalyptic number.

31424222031 is a deficient number, since it is larger than the sum of its proper divisors (10755942369).

31424222031 is a wasteful number, since it uses less digits than its factorization.

31424222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70300425.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31424222031 its reverse (13022242413), we get a palindrome (44446464444).

The spelling of 31424222031 in words is "thirty-one billion, four hundred twenty-four million, two hundred twenty-two thousand, thirty-one".