100561051403 has 2 divisors, whose sum is σ = 100561051404. Its totient is φ = 100561051402.

The previous prime is 100561051399. The next prime is 100561051457. The reversal of 100561051403 is 304150165001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100561051403 - 2² = 100561051399 is a prime.

It is a super-2 number, since 2×100561051403² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100561051463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280525701 + 50280525702.

It is an arithmetic number, because the mean of its divisors is an integer number (50280525702).

Almost surely, 2^100561051403 is an apocalyptic number.

100561051403 is a deficient number, since it is larger than the sum of its proper divisors (1).

100561051403 is an equidigital number, since it uses as much as digits as its factorization.

100561051403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 100561051403 in words is "one hundred billion, five hundred sixty-one million, fifty-one thousand, four hundred three".