101051623543 has 16 divisors (see below), whose sum is σ = 109071275040. Its totient is φ = 93067438464.

The previous prime is 101051623531. The next prime is 101051623649. The reversal of 101051623543 is 345326150101.

It is not a de Polignac number, because 101051623543 - 2⁹ = 101051623031 is a prime.

It is a super-2 number, since 2×101051623543² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101051623523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11307705 + ... + 11316637.

It is an arithmetic number, because the mean of its divisors is an integer number (6816954690).

Almost surely, 2^101051623543 is an apocalyptic number.

101051623543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

101051623543 is a deficient number, since it is larger than the sum of its proper divisors (8019651497).

101051623543 is a wasteful number, since it uses less digits than its factorization.

101051623543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10818.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 101051623543 its reverse (345326150101), we get a palindrome (446377773644).

The spelling of 101051623543 in words is "one hundred one billion, fifty-one million, six hundred twenty-three thousand, five hundred forty-three".