31024141220 has 48 divisors (see below), whose sum is σ = 65496392640. Its totient is φ = 12343959936.

The previous prime is 31024141189. The next prime is 31024141223. The reversal of 31024141220 is 2214142013.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 31024141192 and 31024141201.

It is not an unprimeable number, because it can be changed into a prime (31024141223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3670319 + ... + 3678761.

It is an arithmetic number, because the mean of its divisors is an integer number (1364508180).

Almost surely, 2^31024141220 is an apocalyptic number.

It is an amenable number.

31024141220 is an abundant number, since it is smaller than the sum of its proper divisors (34472251420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31024141220 is a wasteful number, since it uses less digits than its factorization.

31024141220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9404 (or 9402 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31024141220 its reverse (2214142013), we get a palindrome (33238283233).

The spelling of 31024141220 in words is "thirty-one billion, twenty-four million, one hundred forty-one thousand, two hundred twenty".