100123213021131 has 8 divisors (see below), whose sum is σ = 133498128332800. Its totient is φ = 66748553195112.

The previous prime is 100123213021127. The next prime is 100123213021147. The reversal of 100123213021131 is 131120312321001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100123213021131 - 2² = 100123213021127 is a prime.

It is a super-2 number, since 2×100123213021131² (a number of 29 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 = 100123213021098 and 100123213021107.

It is not an unprimeable number, because it can be changed into a prime (100123213021631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62955115 + ... + 64525908.

It is an arithmetic number, because the mean of its divisors is an integer number (16687266041600).

Almost surely, 2^{100123213021131} is an apocalyptic number.

100123213021131 is a deficient number, since it is larger than the sum of its proper divisors (33374915311669).

100123213021131 is a wasteful number, since it uses less digits than its factorization.

100123213021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127742825.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 100123213021131 its reverse (131120312321001), we get a palindrome (231243525342132).

The spelling of 100123213021131 in words is "one hundred trillion, one hundred twenty-three billion, two hundred thirteen million, twenty-one thousand, one hundred thirty-one".