121435541231 has 8 divisors (see below), whose sum is σ = 124167101904. Its totient is φ = 118720288960.

The previous prime is 121435541173. The next prime is 121435541237. The reversal of 121435541231 is 132145534121.

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 121435541231 - 2⁶ = 121435541167 is a prime.

It is a super-2 number, since 2×121435541231² (a number of 23 digits) 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 (121435541237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4062041 + ... + 4091826.

It is an arithmetic number, because the mean of its divisors is an integer number (15520887738).

Almost surely, 2^121435541231 is an apocalyptic number.

121435541231 is a deficient number, since it is larger than the sum of its proper divisors (2731560673).

121435541231 is an equidigital number, since it uses as much as digits as its factorization.

121435541231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8154201.

The product of its digits is 14400, while the sum is 32.

The spelling of 121435541231 in words is "one hundred twenty-one billion, four hundred thirty-five million, five hundred forty-one thousand, two hundred thirty-one".