31220011403031 has 8 divisors (see below), whose sum is σ = 45410925677184. Its totient is φ = 18921219032120.

The previous prime is 31220011403029. The next prime is 31220011403069. The reversal of 31220011403031 is 13030411002213.

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 31220011403031 - 2¹ = 31220011403029 is a prime.

It is a super-2 number, since 2×31220011403031² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31220011402989 and 31220011403007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220011403531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473030475771 + ... + 473030475836.

It is an arithmetic number, because the mean of its divisors is an integer number (5676365709648).

Almost surely, 2^{31220011403031} is an apocalyptic number.

31220011403031 is a deficient number, since it is larger than the sum of its proper divisors (14190914274153).

31220011403031 is a wasteful number, since it uses less digits than its factorization.

31220011403031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946060951621.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31220011403031 its reverse (13030411002213), we get a palindrome (44250422405244).

The spelling of 31220011403031 in words is "thirty-one trillion, two hundred twenty billion, eleven million, four hundred three thousand, thirty-one".