121883628019 has 2 divisors, whose sum is σ = 121883628020. Its totient is φ = 121883628018.

The previous prime is 121883627963. The next prime is 121883628023. The reversal of 121883628019 is 910826388121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121883628019 - 2³³ = 113293693427 is a prime.

It is a super-2 number, since 2×121883628019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121883628059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60941814009 + 60941814010.

It is an arithmetic number, because the mean of its divisors is an integer number (60941814010).

Almost surely, 2^121883628019 is an apocalyptic number.

121883628019 is a deficient number, since it is larger than the sum of its proper divisors (1).

121883628019 is an equidigital number, since it uses as much as digits as its factorization.

121883628019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 49.

The spelling of 121883628019 in words is "one hundred twenty-one billion, eight hundred eighty-three million, six hundred twenty-eight thousand, nineteen".