10123521430 has 32 divisors (see below), whose sum is σ = 19983034368. Its totient is φ = 3661999200.

The previous prime is 10123521427. The next prime is 10123521481. The reversal of 10123521430 is 3412532101.

It is a happy number.

It is a super-2 number, since 2×10123521430² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219912 + ... + 261931.

It is an arithmetic number, because the mean of its divisors is an integer number (624469824).

Almost surely, 2^10123521430 is an apocalyptic number.

10123521430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10123521430 is a deficient number, since it is larger than the sum of its proper divisors (9859512938).

10123521430 is a wasteful number, since it uses less digits than its factorization.

10123521430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482052.

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 10123521430 in words is "ten billion, one hundred twenty-three million, five hundred twenty-one thousand, four hundred thirty".