101001123020 has 48 divisors (see below), whose sum is σ = 255160738560. Its totient is φ = 32806378944.

The previous prime is 101001123017. The next prime is 101001123037. The reversal of 101001123020 is 20321100101.

It is a junction number, because it is equal to n+sod(n) for n = 101001122992 and 101001123010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18982514 + ... + 18987833.

It is an arithmetic number, because the mean of its divisors is an integer number (5315848720).

Almost surely, 2^101001123020 is an apocalyptic number.

101001123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101001123020 is an abundant number, since it is smaller than the sum of its proper divisors (154159615540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101001123020 is a wasteful number, since it uses less digits than its factorization.

101001123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37970382 (or 37970380 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 101001123020 its reverse (20321100101), we get a palindrome (121322223121).

The spelling of 101001123020 in words is "one hundred one billion, one million, one hundred twenty-three thousand, twenty".