10203551398 has 4 divisors (see below), whose sum is σ = 15305327100. Its totient is φ = 5101775698.

The previous prime is 10203551381. The next prime is 10203551431. The reversal of 10203551398 is 89315530201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×10203551398² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550887848 + ... + 2550887851.

It is an arithmetic number, because the mean of its divisors is an integer number (3826331775).

Almost surely, 2^10203551398 is an apocalyptic number.

10203551398 is a deficient number, since it is larger than the sum of its proper divisors (5101775702).

10203551398 is an equidigital number, since it uses as much as digits as its factorization.

10203551398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101775701.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 10203551398 in words is "ten billion, two hundred three million, five hundred fifty-one thousand, three hundred ninety-eight".