402010103 has 4 divisors (see below), whose sum is σ = 438556488. Its totient is φ = 365463720.

The previous prime is 402010099. The next prime is 402010109. The reversal of 402010103 is 301010204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 402010103 - 2² = 402010099 is a prime.

It is a super-2 number, since 2×402010103² = 323224245828141218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (11), and also a Moran number because the ratio is a prime number: 36546373 = 402010103 / (4 + 0 + 2 + 0 + 1 + 0 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402010109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18273176 + ... + 18273197.

It is an arithmetic number, because the mean of its divisors is an integer number (109639122).

Almost surely, 2^402010103 is an apocalyptic number.

402010103 is a deficient number, since it is larger than the sum of its proper divisors (36546385).

402010103 is a wasteful number, since it uses less digits than its factorization.

402010103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36546384.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 402010103 is about 20050.1896001010. The cubic root of 402010103 is about 738.0384518612.

Adding to 402010103 its reverse (301010204), we get a palindrome (703020307).

The spelling of 402010103 in words is "four hundred two million, ten thousand, one hundred three".