10203551407 has 12 divisors (see below), whose sum is σ = 11871153336. Its totient is φ = 8744636880.

The previous prime is 10203551381. The next prime is 10203551431. The reversal of 10203551407 is 70415530201.

It is a happy number.

It is not a de Polignac number, because 10203551407 - 2⁷ = 10203551279 is a prime.

It is a super-2 number, since 2×10203551407² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203551497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 518113 + ... + 537445.

It is an arithmetic number, because the mean of its divisors is an integer number (989262778).

Almost surely, 2^10203551407 is an apocalyptic number.

10203551407 is a deficient number, since it is larger than the sum of its proper divisors (1667601929).

10203551407 is a wasteful number, since it uses less digits than its factorization.

10203551407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30118 (or 30111 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The spelling of 10203551407 in words is "ten billion, two hundred three million, five hundred fifty-one thousand, four hundred seven".