101055121531 has 18 divisors (see below), whose sum is σ = 127292121612. Its totient is φ = 79955694000.

The previous prime is 101055121507. The next prime is 101055121547. The reversal of 101055121531 is 135121550101.

It is not a de Polignac number, because 101055121531 - 2²¹ = 101053024379 is a prime.

It is a super-2 number, since 2×101055121531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101055121496 and 101055121505.

It is not an unprimeable number, because it can be changed into a prime (101055121591) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6093345 + ... + 6109906.

It is an arithmetic number, because the mean of its divisors is an integer number (7071784534).

Almost surely, 2^101055121531 is an apocalyptic number.

101055121531 is a deficient number, since it is larger than the sum of its proper divisors (26237000081).

101055121531 is a wasteful number, since it uses less digits than its factorization.

101055121531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12203291 (or 12203271 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 101055121531 its reverse (135121550101), we get a palindrome (236176671632).

The spelling of 101055121531 in words is "one hundred one billion, fifty-five million, one hundred twenty-one thousand, five hundred thirty-one".