100021013397 has 36 divisors (see below), whose sum is σ = 155698189920. Its totient is φ = 61701874416.

The previous prime is 100021013371. The next prime is 100021013413. The reversal of 100021013397 is 793310120001.

It is not a de Polignac number, because 100021013397 - 2¹⁵ = 100020980629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100021013397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021013327) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 158008 + ... + 474350.

It is an arithmetic number, because the mean of its divisors is an integer number (4324949720).

Almost surely, 2^100021013397 is an apocalyptic number.

It is an amenable number.

100021013397 is a deficient number, since it is larger than the sum of its proper divisors (55677176523).

100021013397 is a wasteful number, since it uses less digits than its factorization.

100021013397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316454 (or 316408 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

Adding to 100021013397 its reverse (793310120001), we get a palindrome (893331133398).

The spelling of 100021013397 in words is "one hundred billion, twenty-one million, thirteen thousand, three hundred ninety-seven".