1240001051 has 2 divisors, whose sum is σ = 1240001052. Its totient is φ = 1240001050.

The previous prime is 1240001033. The next prime is 1240001083. The reversal of 1240001051 is 1501000421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240001051 - 2²⁶ = 1172892187 is a prime.

It is a super-2 number, since 2×1240001051² = 3075205212962209202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1240001951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620000525 + 620000526.

It is an arithmetic number, because the mean of its divisors is an integer number (620000526).

Almost surely, 2^1240001051 is an apocalyptic number.

1240001051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240001051 is an equidigital number, since it uses as much as digits as its factorization.

1240001051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1240001051 is about 35213.6486465121. The cubic root of 1240001051 is about 1074.3373745180.

Adding to 1240001051 its reverse (1501000421), we get a palindrome (2741001472).

The spelling of 1240001051 in words is "one billion, two hundred forty million, one thousand, fifty-one".