30121153091 has 2 divisors, whose sum is σ = 30121153092. Its totient is φ = 30121153090.

The previous prime is 30121153081. The next prime is 30121153123. The reversal of 30121153091 is 19035112103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30121153091 - 2³⁴ = 12941283907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30121153091.

It is not a weakly prime, because it can be changed into another prime (30121153081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060576545 + 15060576546.

It is an arithmetic number, because the mean of its divisors is an integer number (15060576546).

Almost surely, 2^30121153091 is an apocalyptic number.

30121153091 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121153091 is an equidigital number, since it uses as much as digits as its factorization.

30121153091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 26.

Adding to 30121153091 its reverse (19035112103), we get a palindrome (49156265194).

The spelling of 30121153091 in words is "thirty billion, one hundred twenty-one million, one hundred fifty-three thousand, ninety-one".