121101431 has 8 divisors (see below), whose sum is σ = 132192000. Its totient is φ = 110024440.

The previous prime is 121101403. The next prime is 121101437. The reversal of 121101431 is 134101121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121101431 - 2⁶ = 121101367 is a prime.

It is a super-2 number, since 2×121101431² = 29331113180495522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27650 + ... + 31728.

It is an arithmetic number, because the mean of its divisors is an integer number (16524000).

Almost surely, 2^121101431 is an apocalyptic number.

121101431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121101431 is a deficient number, since it is larger than the sum of its proper divisors (11090569).

121101431 is a wasteful number, since it uses less digits than its factorization.

121101431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6789.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 121101431 is about 11004.6095341907. The cubic root of 121101431 is about 494.7469113985.

Adding to 121101431 its reverse (134101121), we get a palindrome (255202552).

The spelling of 121101431 in words is "one hundred twenty-one million, one hundred one thousand, four hundred thirty-one".