101012031123 has 16 divisors (see below), whose sum is σ = 139354222080. Its totient is φ = 65006506656.

The previous prime is 101012031103. The next prime is 101012031137. The reversal of 101012031123 is 321130210101.

It is a happy number.

It is not a de Polignac number, because 101012031123 - 2¹⁴ = 101012014739 is a prime.

It is a super-2 number, since 2×101012031123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101012031103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343686 + ... + 565812.

It is an arithmetic number, because the mean of its divisors is an integer number (8709638880).

Almost surely, 2^101012031123 is an apocalyptic number.

101012031123 is a deficient number, since it is larger than the sum of its proper divisors (38342190957).

101012031123 is a wasteful number, since it uses less digits than its factorization.

101012031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227386.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 101012031123 its reverse (321130210101), we get a palindrome (422142241224).

The spelling of 101012031123 in words is "one hundred one billion, twelve million, thirty-one thousand, one hundred twenty-three".