121276345810 has 16 divisors (see below), whose sum is σ = 219259089216. Its totient is φ = 48296834608.

The previous prime is 121276345793. The next prime is 121276345871. The reversal of 121276345810 is 18543672121.

It is a super-2 number, since 2×121276345810² (a number of 23 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26710582 + ... + 26715121.

It is an arithmetic number, because the mean of its divisors is an integer number (13703693076).

Almost surely, 2^121276345810 is an apocalyptic number.

121276345810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121276345810 is a deficient number, since it is larger than the sum of its proper divisors (97982743406).

121276345810 is a wasteful number, since it uses less digits than its factorization.

121276345810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53425937.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 121276345810 in words is "one hundred twenty-one billion, two hundred seventy-six million, three hundred forty-five thousand, eight hundred ten".