102021001101123 has 32 divisors (see below), whose sum is σ = 146832840000000. Its totient is φ = 62635963585536.

The previous prime is 102021001101073. The next prime is 102021001101139. The reversal of 102021001101123 is 321101100120201.

It is not a de Polignac number, because 102021001101123 - 2¹² = 102021001097027 is a prime.

It is a super-2 number, since 2×102021001101123² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102021001101923) 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, 362602003 + ... + 362883251.

It is an arithmetic number, because the mean of its divisors is an integer number (4588526250000).

Almost surely, 2^{102021001101123} is an apocalyptic number.

102021001101123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102021001101123 is a deficient number, since it is larger than the sum of its proper divisors (44811838898877).

102021001101123 is a wasteful number, since it uses less digits than its factorization.

102021001101123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302891.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 102021001101123 its reverse (321101100120201), we get a palindrome (423122101221324).

The spelling of 102021001101123 in words is "one hundred two trillion, twenty-one billion, one million, one hundred one thousand, one hundred twenty-three".