20401511141 has 16 divisors (see below), whose sum is σ = 22865011008. Its totient is φ = 18039801600.

The previous prime is 20401511101. The next prime is 20401511149. The reversal of 20401511141 is 14111510402.

It is a cyclic number.

It is not a de Polignac number, because 20401511141 - 2¹⁸ = 20401248997 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 (20401511149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1733246 + ... + 1744976.

It is an arithmetic number, because the mean of its divisors is an integer number (1429063188).

Almost surely, 2^20401511141 is an apocalyptic number.

It is an amenable number.

20401511141 is a deficient number, since it is larger than the sum of its proper divisors (2463499867).

20401511141 is a wasteful number, since it uses less digits than its factorization.

20401511141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16052.

The product of its (nonzero) digits is 160, while the sum is 20.

The spelling of 20401511141 in words is "twenty billion, four hundred one million, five hundred eleven thousand, one hundred forty-one".