31430133022 has 4 divisors (see below), whose sum is σ = 47145199536. Its totient is φ = 15715066510.

The previous prime is 31430133011. The next prime is 31430133023. The reversal of 31430133022 is 22033103413.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×31430133022² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31430132984 and 31430133002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430133023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7857533254 + ... + 7857533257.

It is an arithmetic number, because the mean of its divisors is an integer number (11786299884).

Almost surely, 2^31430133022 is an apocalyptic number.

31430133022 is a deficient number, since it is larger than the sum of its proper divisors (15715066514).

31430133022 is a wasteful number, since it uses less digits than its factorization.

31430133022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715066513.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31430133022 its reverse (22033103413), we get a palindrome (53463236435).

The spelling of 31430133022 in words is "thirty-one billion, four hundred thirty million, one hundred thirty-three thousand, twenty-two".