20031121141 has 8 divisors (see below), whose sum is σ = 20125632384. Its totient is φ = 19936683360.

The previous prime is 20031121139. The next prime is 20031121151. The reversal of 20031121141 is 14112113002.

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

It is a cyclic number.

It is not a de Polignac number, because 20031121141 - 2¹ = 20031121139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031121151) 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, 572740 + ... + 606706.

It is an arithmetic number, because the mean of its divisors is an integer number (2515704048).

Almost surely, 2^20031121141 is an apocalyptic number.

It is an amenable number.

20031121141 is a deficient number, since it is larger than the sum of its proper divisors (94511243).

20031121141 is a wasteful number, since it uses less digits than its factorization.

20031121141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36731.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20031121141 its reverse (14112113002), we get a palindrome (34143234143).

The spelling of 20031121141 in words is "twenty billion, thirty-one million, one hundred twenty-one thousand, one hundred forty-one".