31430133031 has 8 divisors (see below), whose sum is σ = 34397670528. Its totient is φ = 28480971000.

The previous prime is 31430133023. The next prime is 31430133037. The reversal of 31430133031 is 13033103413.

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

It is a cyclic number.

It is not a de Polignac number, because 31430133031 - 2³ = 31430133023 is a prime.

It is a super-2 number, since 2×31430133031² (a number of 22 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 = 31430132993 and 31430133011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430133037) 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 in 7 ways as a sum of consecutive naturals, for example, 4590285 + ... + 4597126.

It is an arithmetic number, because the mean of its divisors is an integer number (4299708816).

Almost surely, 2^31430133031 is an apocalyptic number.

31430133031 is a deficient number, since it is larger than the sum of its proper divisors (2967537497).

31430133031 is a wasteful number, since it uses less digits than its factorization.

31430133031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9187733.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31430133031 its reverse (13033103413), we get a palindrome (44463236444).

It can be divided in two parts, 31430 and 133031, that added together give a palindrome (164461).

The spelling of 31430133031 in words is "thirty-one billion, four hundred thirty million, one hundred thirty-three thousand, thirty-one".