101154433540 has 24 divisors (see below), whose sum is σ = 213305749272. Its totient is φ = 40293880320.

The previous prime is 101154433519. The next prime is 101154433559. The reversal of 101154433540 is 45334451101.

It can be written as a sum of positive squares in 4 ways, for example, as 12078449604 + 89075983936 = 109902^2 + 298456^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10488379 + ... + 10498018.

It is an arithmetic number, because the mean of its divisors is an integer number (8887739553).

Almost surely, 2^101154433540 is an apocalyptic number.

101154433540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101154433540 is an abundant number, since it is smaller than the sum of its proper divisors (112151315732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101154433540 is a wasteful number, since it uses less digits than its factorization.

101154433540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20986647 (or 20986645 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 101154433540 its reverse (45334451101), we get a palindrome (146488884641).

The spelling of 101154433540 in words is "one hundred one billion, one hundred fifty-four million, four hundred thirty-three thousand, five hundred forty".