101051623540 has 24 divisors (see below), whose sum is σ = 242523896832. Its totient is φ = 34646270880.

The previous prime is 101051623531. The next prime is 101051623649. The reversal of 101051623540 is 45326150101.

It is a super-2 number, since 2×101051623540² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 101051623499 and 101051623508.

It is a congruent number.

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, 360898516 + ... + 360898795.

It is an arithmetic number, because the mean of its divisors is an integer number (10105162368).

Almost surely, 2^101051623540 is an apocalyptic number.

101051623540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101051623540 is an abundant number, since it is smaller than the sum of its proper divisors (141472273292).

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

101051623540 is a wasteful number, since it uses less digits than its factorization.

101051623540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721797327 (or 721797325 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 101051623540 its reverse (45326150101), we get a palindrome (146377773641).

The spelling of 101051623540 in words is "one hundred one billion, fifty-one million, six hundred twenty-three thousand, five hundred forty".