20401011241 has 8 divisors (see below), whose sum is σ = 21974246784. Its totient is φ = 18828336720.

The previous prime is 20401011223. The next prime is 20401011317. The reversal of 20401011241 is 14211010402.

It is a happy number.

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 20401011241 - 2¹⁵ = 20400978473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20401071241) 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 7 ways as a sum of consecutive naturals, for example, 63151 + ... + 211636.

It is an arithmetic number, because the mean of its divisors is an integer number (2746780848).

Almost surely, 2^20401011241 is an apocalyptic number.

It is an amenable number.

20401011241 is a deficient number, since it is larger than the sum of its proper divisors (1573235543).

20401011241 is a wasteful number, since it uses less digits than its factorization.

20401011241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280511.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20401011241 its reverse (14211010402), we get a palindrome (34612021643).

The spelling of 20401011241 in words is "twenty billion, four hundred one million, eleven thousand, two hundred forty-one".