101204320421042 has 4 divisors (see below), whose sum is σ = 151806480631566. Its totient is φ = 50602160210520.

The previous prime is 101204320420997. The next prime is 101204320421047. The reversal of 101204320421042 is 240124023402101.

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

It can be written as a sum of positive squares in only one way, i.e., 84871980334801 + 16332340086241 = 9212599^2 + 4041329^2 .

It is not an unprimeable number, because it can be changed into a prime (101204320421047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25301080105259 + ... + 25301080105262.

Almost surely, 2^{101204320421042} is an apocalyptic number.

101204320421042 is a deficient number, since it is larger than the sum of its proper divisors (50602160210524).

101204320421042 is an equidigital number, since it uses as much as digits as its factorization.

101204320421042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50602160210523.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 101204320421042 its reverse (240124023402101), we get a palindrome (341328343823143).

The spelling of 101204320421042 in words is "one hundred one trillion, two hundred four billion, three hundred twenty million, four hundred twenty-one thousand, forty-two".