201055120451 has 4 divisors (see below), whose sum is σ = 201064710504. Its totient is φ = 201045530400.

The previous prime is 201055120429. The next prime is 201055120477. The reversal of 201055120451 is 154021550102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201055120451 is a prime.

It is a super-2 number, since 2×201055120451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201055120451.

It is not an unprimeable number, because it can be changed into a prime (201055120751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4763510 + ... + 4805531.

It is an arithmetic number, because the mean of its divisors is an integer number (50266177626).

Almost surely, 2^201055120451 is an apocalyptic number.

201055120451 is a deficient number, since it is larger than the sum of its proper divisors (9590053).

201055120451 is an equidigital number, since it uses as much as digits as its factorization.

201055120451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9590052.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 201055120451 its reverse (154021550102), we get a palindrome (355076670553).

The spelling of 201055120451 in words is "two hundred one billion, fifty-five million, one hundred twenty thousand, four hundred fifty-one".