101240421031100 has 72 divisors (see below), whose sum is σ = 241624929056448. Its totient is φ = 36585736416000.

The previous prime is 101240421031093. The next prime is 101240421031109. The reversal of 101240421031100 is 1130124042101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101240421031109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 828420251 + ... + 828542450.

Almost surely, 2^{101240421031100} is an apocalyptic number.

101240421031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101240421031100 is an abundant number, since it is smaller than the sum of its proper divisors (140384508025348).

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

101240421031100 is a wasteful number, since it uses less digits than its factorization.

101240421031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656962775 (or 1656962768 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 101240421031100 its reverse (1130124042101), we get a palindrome (102370545073201).

The spelling of 101240421031100 in words is "one hundred one trillion, two hundred forty billion, four hundred twenty-one million, thirty-one thousand, one hundred".