1011620421151 has 2 divisors, whose sum is σ = 1011620421152. Its totient is φ = 1011620421150.

The previous prime is 1011620421143. The next prime is 1011620421167. The reversal of 1011620421151 is 1511240261101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011620421151 - 2³ = 1011620421143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011620421101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505810210575 + 505810210576.

It is an arithmetic number, because the mean of its divisors is an integer number (505810210576).

Almost surely, 2^{1011620421151} is an apocalyptic number.

1011620421151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011620421151 is an equidigital number, since it uses as much as digits as its factorization.

1011620421151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 25.

Adding to 1011620421151 its reverse (1511240261101), we get a palindrome (2522860682252).

The spelling of 1011620421151 in words is "one trillion, eleven billion, six hundred twenty million, four hundred twenty-one thousand, one hundred fifty-one".