220103211431 has 32 divisors (see below), whose sum is σ = 235679170560. Its totient is φ = 204965220096.

The previous prime is 220103211409. The next prime is 220103211437. The reversal of 220103211431 is 134112301022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220103211431 is a prime.

It is a super-2 number, since 2×220103211431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220103211437) 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 31 ways as a sum of consecutive naturals, for example, 184494971 + ... + 184496163.

It is an arithmetic number, because the mean of its divisors is an integer number (7364974080).

Almost surely, 2^220103211431 is an apocalyptic number.

220103211431 is a deficient number, since it is larger than the sum of its proper divisors (15575959129).

220103211431 is a wasteful number, since it uses less digits than its factorization.

220103211431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 220103211431 its reverse (134112301022), we get a palindrome (354215512453).

The spelling of 220103211431 in words is "two hundred twenty billion, one hundred three million, two hundred eleven thousand, four hundred thirty-one".