101501552420 has 24 divisors (see below), whose sum is σ = 218352121848. Its totient is φ = 39610361600.

The previous prime is 101501552419. The next prime is 101501552491. The reversal of 101501552420 is 24255105101.

It can be written as a sum of positive squares in 4 ways, for example, as 2734662436 + 98766889984 = 52294^2 + 314272^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101501552420.

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, 61890371 + ... + 61892010.

It is an arithmetic number, because the mean of its divisors is an integer number (9098005077).

Almost surely, 2^101501552420 is an apocalyptic number.

101501552420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101501552420 is an abundant number, since it is smaller than the sum of its proper divisors (116850569428).

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

101501552420 is a wasteful number, since it uses less digits than its factorization.

101501552420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123782431 (or 123782429 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 101501552420 its reverse (24255105101), we get a palindrome (125756657521).

The spelling of 101501552420 in words is "one hundred one billion, five hundred one million, five hundred fifty-two thousand, four hundred twenty".