1012253401 has 4 divisors (see below), whose sum is σ = 1012682704. Its totient is φ = 1011824100.

The previous prime is 1012253399. The next prime is 1012253441. The reversal of 1012253401 is 1043522101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1012253401 - 2¹ = 1012253399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012253441) 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, 211095 + ... + 215836.

It is an arithmetic number, because the mean of its divisors is an integer number (253170676).

Almost surely, 2^1012253401 is an apocalyptic number.

It is an amenable number.

1012253401 is a deficient number, since it is larger than the sum of its proper divisors (429303).

1012253401 is an equidigital number, since it uses as much as digits as its factorization.

1012253401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429302.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1012253401 is about 31815.9299879793. The cubic root of 1012253401 is about 1004.0678967776.

Adding to 1012253401 its reverse (1043522101), we get a palindrome (2055775502).

The spelling of 1012253401 in words is "one billion, twelve million, two hundred fifty-three thousand, four hundred one".