121045145430 has 64 divisors (see below), whose sum is σ = 330697271808. Its totient is φ = 28068437760.

The previous prime is 121045145393. The next prime is 121045145483. The reversal of 121045145430 is 34541540121.

It is a super-3 number, since 3×121045145430³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7966399 + ... + 7981578.

It is an arithmetic number, because the mean of its divisors is an integer number (5167144872).

Almost surely, 2^121045145430 is an apocalyptic number.

121045145430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121045145430 is an abundant number, since it is smaller than the sum of its proper divisors (209652126378).

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

121045145430 is a wasteful number, since it uses less digits than its factorization.

121045145430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15948021.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 121045145430 its reverse (34541540121), we get a palindrome (155586685551).

The spelling of 121045145430 in words is "one hundred twenty-one billion, forty-five million, one hundred forty-five thousand, four hundred thirty".