101973531069 has 32 divisors (see below), whose sum is σ = 159048086400. Its totient is φ = 64394196480.

The previous prime is 101973531043. The next prime is 101973531071. The reversal of 101973531069 is 960135379101.

It is a happy number.

101973531069 is a `hidden beast` number, since 1 + 0 + 197 + 353 + 106 + 9 = 666.

It is not a de Polignac number, because 101973531069 - 2⁷ = 101973530941 is a prime.

It is a super-2 number, since 2×101973531069² (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 (101973531019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4534477 + ... + 4556909.

It is an arithmetic number, because the mean of its divisors is an integer number (4970252700).

Almost surely, 2^101973531069 is an apocalyptic number.

101973531069 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

101973531069 is a deficient number, since it is larger than the sum of its proper divisors (57074555331).

101973531069 is a wasteful number, since it uses less digits than its factorization.

101973531069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31322 (or 31316 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The spelling of 101973531069 in words is "one hundred one billion, nine hundred seventy-three million, five hundred thirty-one thousand, sixty-nine".