121042236783 has 16 divisors (see below), whose sum is σ = 176398334336. Its totient is φ = 73375774560.

The previous prime is 121042236739. The next prime is 121042236797. The reversal of 121042236783 is 387632240121.

It is not a de Polignac number, because 121042236783 - 2⁶ = 121042236719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121042236713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23158933 + ... + 23164158.

It is an arithmetic number, because the mean of its divisors is an integer number (11024895896).

Almost surely, 2^121042236783 is an apocalyptic number.

121042236783 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121042236783 is a deficient number, since it is larger than the sum of its proper divisors (55356097553).

121042236783 is a wasteful number, since it uses less digits than its factorization.

121042236783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46323174.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 121042236783 in words is "one hundred twenty-one billion, forty-two million, two hundred thirty-six thousand, seven hundred eighty-three".