100401040245 has 16 divisors (see below), whose sum is σ = 175245452352. Its totient is φ = 48679292160.

The previous prime is 100401040241. The next prime is 100401040247. The reversal of 100401040245 is 542040104001.

It is a happy number.

It is not a de Polignac number, because 100401040245 - 2² = 100401040241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100401040241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304245412 + ... + 304245741.

It is an arithmetic number, because the mean of its divisors is an integer number (10952840772).

Almost surely, 2^100401040245 is an apocalyptic number.

100401040245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100401040245 is a deficient number, since it is larger than the sum of its proper divisors (74844412107).

100401040245 is a wasteful number, since it uses less digits than its factorization.

100401040245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608491172.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 100401040245 its reverse (542040104001), we get a palindrome (642441144246).

The spelling of 100401040245 in words is "one hundred billion, four hundred one million, forty thousand, two hundred forty-five".