20123211441 has 8 divisors (see below), whose sum is σ = 26835293344. Its totient is φ = 13413301920.

The previous prime is 20123211439. The next prime is 20123211461. The reversal of 20123211441 is 14411232102.

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

It is not a de Polignac number, because 20123211441 - 2¹ = 20123211439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123211401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521356 + ... + 558621.

It is an arithmetic number, because the mean of its divisors is an integer number (3354411668).

Almost surely, 2^20123211441 is an apocalyptic number.

It is an amenable number.

20123211441 is a deficient number, since it is larger than the sum of its proper divisors (6712081903).

20123211441 is a wasteful number, since it uses less digits than its factorization.

20123211441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086191.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20123211441 its reverse (14411232102), we get a palindrome (34534443543).

The spelling of 20123211441 in words is "twenty billion, one hundred twenty-three million, two hundred eleven thousand, four hundred forty-one".