1220031141 has 8 divisors (see below), whose sum is σ = 1859095104. Its totient is φ = 697160640.

The previous prime is 1220031121. The next prime is 1220031149. The reversal of 1220031141 is 1411300221.

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

It is not a de Polignac number, because 1220031141 - 2⁹ = 1220030629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220031141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220031149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29048340 + ... + 29048381.

It is an arithmetic number, because the mean of its divisors is an integer number (232386888).

Almost surely, 2^1220031141 is an apocalyptic number.

It is an amenable number.

1220031141 is a deficient number, since it is larger than the sum of its proper divisors (639063963).

1220031141 is an equidigital number, since it uses as much as digits as its factorization.

1220031141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58096731.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1220031141 is about 34928.9441724195. The cubic root of 1220031141 is about 1068.5388216246.

Adding to 1220031141 its reverse (1411300221), we get a palindrome (2631331362).

The spelling of 1220031141 in words is "one billion, two hundred twenty million, thirty-one thousand, one hundred forty-one".