101511553142 has 16 divisors (see below), whose sum is σ = 158362675152. Its totient is φ = 48762695520.

The previous prime is 101511553139. The next prime is 101511553201. The reversal of 101511553142 is 241355115101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9669893 + ... + 9680384.

It is an arithmetic number, because the mean of its divisors is an integer number (9897667197).

Almost surely, 2^101511553142 is an apocalyptic number.

101511553142 is a deficient number, since it is larger than the sum of its proper divisors (56851122010).

101511553142 is a wasteful number, since it uses less digits than its factorization.

101511553142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19350383.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 101511553142 its reverse (241355115101), we get a palindrome (342866668243).

The spelling of 101511553142 in words is "one hundred one billion, five hundred eleven million, five hundred fifty-three thousand, one hundred forty-two".