100111010021051 has 2 divisors, whose sum is σ = 100111010021052. Its totient is φ = 100111010021050.

The previous prime is 100111010020991. The next prime is 100111010021059. The reversal of 100111010021051 is 150120010111001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100111010021051 is a prime.

It is not a weakly prime, because it can be changed into another prime (100111010021059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055505010525 + 50055505010526.

It is an arithmetic number, because the mean of its divisors is an integer number (50055505010526).

Almost surely, 2^{100111010021051} is an apocalyptic number.

100111010021051 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111010021051 is an equidigital number, since it uses as much as digits as its factorization.

100111010021051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 14.

Adding to 100111010021051 its reverse (150120010111001), we get a palindrome (250231020132052).

The spelling of 100111010021051 in words is "one hundred trillion, one hundred eleven billion, ten million, twenty-one thousand, fifty-one".