100120531035551 has 8 divisors (see below), whose sum is σ = 107829552201840. Its totient is φ = 92412572991552.

The previous prime is 100120531035439. The next prime is 100120531035563. The reversal of 100120531035551 is 155530135021001.

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 100120531035551 - 2¹⁴ = 100120531019167 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 (100120531035851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265584965 + ... + 265961678.

It is an arithmetic number, because the mean of its divisors is an integer number (13478694025230).

Almost surely, 2^{100120531035551} is an apocalyptic number.

100120531035551 is a deficient number, since it is larger than the sum of its proper divisors (7709021166289).

100120531035551 is a wasteful number, since it uses less digits than its factorization.

100120531035551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531561145.

The product of its (nonzero) digits is 11250, while the sum is 32.

Adding to 100120531035551 its reverse (155530135021001), we get a palindrome (255650666056552).

The spelling of 100120531035551 in words is "one hundred trillion, one hundred twenty billion, five hundred thirty-one million, thirty-five thousand, five hundred fifty-one".