901928522101 has 4 divisors (see below), whose sum is σ = 902053919052. Its totient is φ = 901803125152.

The previous prime is 901928522093. The next prime is 901928522107. The reversal of 901928522101 is 101225829109.

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 473199531025 + 428728991076 = 687895^2 + 654774^2 .

It is a cyclic number.

It is not a de Polignac number, because 901928522101 - 2³ = 901928522093 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 (901928522107) 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, 62687686 + ... + 62702071.

It is an arithmetic number, because the mean of its divisors is an integer number (225513479763).

Almost surely, 2^901928522101 is an apocalyptic number.

It is an amenable number.

901928522101 is a deficient number, since it is larger than the sum of its proper divisors (125396951).

901928522101 is a wasteful number, since it uses less digits than its factorization.

901928522101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125396950.

The product of its (nonzero) digits is 25920, while the sum is 40.

The spelling of 901928522101 in words is "nine hundred one billion, nine hundred twenty-eight million, five hundred twenty-two thousand, one hundred one".