121000252507 has 2 divisors, whose sum is σ = 121000252508. Its totient is φ = 121000252506.

The previous prime is 121000252459. The next prime is 121000252519. The reversal of 121000252507 is 705252000121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121000252507 - 2³⁵ = 86640514139 is a prime.

It is a super-2 number, since 2×121000252507² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121000252547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500126253 + 60500126254.

It is an arithmetic number, because the mean of its divisors is an integer number (60500126254).

Almost surely, 2^121000252507 is an apocalyptic number.

121000252507 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000252507 is an equidigital number, since it uses as much as digits as its factorization.

121000252507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 25.

Adding to 121000252507 its reverse (705252000121), we get a palindrome (826252252628).

The spelling of 121000252507 in words is "one hundred twenty-one billion, two hundred fifty-two thousand, five hundred seven".