101455111442 has 4 divisors (see below), whose sum is σ = 152182667166. Its totient is φ = 50727555720.

The previous prime is 101455111403. The next prime is 101455111477. The reversal of 101455111442 is 244111554101.

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., 76922467801 + 24532643641 = 277349^2 + 156629^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25363777859 + ... + 25363777862.

Almost surely, 2^101455111442 is an apocalyptic number.

101455111442 is a deficient number, since it is larger than the sum of its proper divisors (50727555724).

101455111442 is an equidigital number, since it uses as much as digits as its factorization.

101455111442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50727555723.

The product of its (nonzero) digits is 3200, while the sum is 29.

Adding to 101455111442 its reverse (244111554101), we get a palindrome (345566665543).

The spelling of 101455111442 in words is "one hundred one billion, four hundred fifty-five million, one hundred eleven thousand, four hundred forty-two".