121154153143 has 2 divisors, whose sum is σ = 121154153144. Its totient is φ = 121154153142.

The previous prime is 121154153129. The next prime is 121154153173. The reversal of 121154153143 is 341351451121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121154153143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121154153173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60577076571 + 60577076572.

It is an arithmetic number, because the mean of its divisors is an integer number (60577076572).

Almost surely, 2^121154153143 is an apocalyptic number.

121154153143 is a deficient number, since it is larger than the sum of its proper divisors (1).

121154153143 is an equidigital number, since it uses as much as digits as its factorization.

121154153143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 31.

The spelling of 121154153143 in words is "one hundred twenty-one billion, one hundred fifty-four million, one hundred fifty-three thousand, one hundred forty-three".