20125154201 has 16 divisors (see below), whose sum is σ = 20408058000. Its totient is φ = 19844825088.

The previous prime is 20125154131. The next prime is 20125154207. The reversal of 20125154201 is 10245152102.

It can be written as a sum of positive squares in 8 ways, for example, as 810825625 + 19314328576 = 28475^2 + 138976^2 .

It is a cyclic number.

It is not a de Polignac number, because 20125154201 - 2³⁰ = 19051412377 is a prime.

It is a super-2 number, since 2×20125154201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20125154207) 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, 14282585 + ... + 14283993.

It is an arithmetic number, because the mean of its divisors is an integer number (1275503625).

Almost surely, 2^20125154201 is an apocalyptic number.

It is an amenable number.

20125154201 is a deficient number, since it is larger than the sum of its proper divisors (282903799).

20125154201 is a wasteful number, since it uses less digits than its factorization.

20125154201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188.

The product of its (nonzero) digits is 800, while the sum is 23.

The spelling of 20125154201 in words is "twenty billion, one hundred twenty-five million, one hundred fifty-four thousand, two hundred one".