102400535220241 has 4 divisors (see below), whose sum is σ = 105931588158900. Its totient is φ = 98869482281584.

The previous prime is 102400535220211. The next prime is 102400535220289. The reversal of 102400535220241 is 142022535004201.

It is a happy number.

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 44339564169616 + 58060971050625 = 6658796^2 + 7619775^2 .

It is a cyclic number.

It is not a de Polignac number, because 102400535220241 - 2¹⁵ = 102400535187473 is a prime.

It is a super-2 number, since 2×102400535220241² (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 (102400535220211) 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, 1765526469286 + ... + 1765526469343.

It is an arithmetic number, because the mean of its divisors is an integer number (26482897039725).

Almost surely, 2^{102400535220241} is an apocalyptic number.

It is an amenable number.

102400535220241 is a deficient number, since it is larger than the sum of its proper divisors (3531052938659).

102400535220241 is an equidigital number, since it uses as much as digits as its factorization.

102400535220241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531052938658.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 102400535220241 in words is "one hundred two trillion, four hundred billion, five hundred thirty-five million, two hundred twenty thousand, two hundred forty-one".