121023036 has 18 divisors (see below), whose sum is σ = 305919432. Its totient is φ = 40341000.

The previous prime is 121023031. The next prime is 121023037. The reversal of 121023036 is 630320121.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121023031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1680840 + ... + 1680911.

It is an arithmetic number, because the mean of its divisors is an integer number (16995524).

Almost surely, 2^121023036 is an apocalyptic number.

It is an amenable number.

121023036 is an abundant number, since it is smaller than the sum of its proper divisors (184896396).

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

121023036 is a wasteful number, since it uses less digits than its factorization.

121023036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361761 (or 3361756 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 121023036 is about 11001.0470410775. The cubic root of 121023036 is about 494.6401302314.

Adding to 121023036 its reverse (630320121), we get a palindrome (751343157).

The spelling of 121023036 in words is "one hundred twenty-one million, twenty-three thousand, thirty-six".