1012142403 has 6 divisors (see below), whose sum is σ = 1461983484. Its totient is φ = 674761596.

The previous prime is 1012142399. The next prime is 1012142429. The reversal of 1012142403 is 3042412101.

It is not a de Polignac number, because 1012142403 - 2² = 1012142399 is a prime.

It is a super-2 number, since 2×1012142403² = 2048864487901228818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012142003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56230125 + ... + 56230142.

It is an arithmetic number, because the mean of its divisors is an integer number (243663914).

Almost surely, 2^1012142403 is an apocalyptic number.

1012142403 is a deficient number, since it is larger than the sum of its proper divisors (449841081).

1012142403 is a wasteful number, since it uses less digits than its factorization.

1012142403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112460273 (or 112460270 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1012142403 is about 31814.1855624185. The cubic root of 1012142403 is about 1004.0311952948.

Adding to 1012142403 its reverse (3042412101), we get a palindrome (4054554504).

The spelling of 1012142403 in words is "one billion, twelve million, one hundred forty-two thousand, four hundred three".