141220031 has 4 divisors (see below), whose sum is σ = 144664464. Its totient is φ = 137775600.

The previous prime is 141220019. The next prime is 141220039. The reversal of 141220031 is 130022141.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141220031 is a prime.

It is a super-2 number, since 2×141220031² = 39886194311281922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 141219988 and 141220015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141220039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1722155 + ... + 1722236.

It is an arithmetic number, because the mean of its divisors is an integer number (36166116).

Almost surely, 2^141220031 is an apocalyptic number.

141220031 is a deficient number, since it is larger than the sum of its proper divisors (3444433).

141220031 is an equidigital number, since it uses as much as digits as its factorization.

141220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444432.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 141220031 is about 11883.6034518154. The cubic root of 141220031 is about 520.7533840432.

Adding to 141220031 its reverse (130022141), we get a palindrome (271242172).

The spelling of 141220031 in words is "one hundred forty-one million, two hundred twenty thousand, thirty-one".