101121011004 has 96 divisors (see below), whose sum is σ = 255020351040. Its totient is φ = 31001591808.

The previous prime is 101121010997. The next prime is 101121011009. The reversal of 101121011004 is 400110121101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101121011009) 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, 91181602 + ... + 91182710.

It is an arithmetic number, because the mean of its divisors is an integer number (2656461990).

Almost surely, 2^101121011004 is an apocalyptic number.

It is an amenable number.

101121011004 is an abundant number, since it is smaller than the sum of its proper divisors (153899340036).

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

101121011004 is a wasteful number, since it uses less digits than its factorization.

101121011004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719 (or 2717 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101121011004 its reverse (400110121101), we get a palindrome (501231132105).

The spelling of 101121011004 in words is "one hundred one billion, one hundred twenty-one million, eleven thousand, four".