151031205055001 has 4 divisors (see below), whose sum is σ = 151031687383332. Its totient is φ = 151030722726672.

The previous prime is 151031205054971. The next prime is 151031205055043. The reversal of 151031205055001 is 100550502130151.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68837471017225 + 82193734037776 = 8296835^2 + 9066076^2 .

It is a cyclic number.

It is not a de Polignac number, because 151031205055001 - 2¹⁴ = 151031205038617 is a prime.

It is a super-2 number, since 2×151031205055001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151031205055301) 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, 240694166 + ... + 241320831.

It is an arithmetic number, because the mean of its divisors is an integer number (37757921845833).

Almost surely, 2^{151031205055001} is an apocalyptic number.

It is an amenable number.

151031205055001 is a deficient number, since it is larger than the sum of its proper divisors (482328331).

151031205055001 is an equidigital number, since it uses as much as digits as its factorization.

151031205055001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482328330.

The product of its (nonzero) digits is 3750, while the sum is 29.

Adding to 151031205055001 its reverse (100550502130151), we get a palindrome (251581707185152).

The spelling of 151031205055001 in words is "one hundred fifty-one trillion, thirty-one billion, two hundred five million, fifty-five thousand, one".