4048021031 has 2 divisors, whose sum is σ = 4048021032. Its totient is φ = 4048021030.

The previous prime is 4048021027. The next prime is 4048021069. The reversal of 4048021031 is 1301208404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4048021031 - 2² = 4048021027 is a prime.

It is a super-2 number, since 2×4048021031² = 32772948534836605922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4048020988 and 4048021006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4048021531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2024010515 + 2024010516.

It is an arithmetic number, because the mean of its divisors is an integer number (2024010516).

Almost surely, 2^4048021031 is an apocalyptic number.

4048021031 is a deficient number, since it is larger than the sum of its proper divisors (1).

4048021031 is an equidigital number, since it uses as much as digits as its factorization.

4048021031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 4048021031 is about 63624.0601580880. The cubic root of 4048021031 is about 1593.7281857509.

Adding to 4048021031 its reverse (1301208404), we get a palindrome (5349229435).

The spelling of 4048021031 in words is "four billion, forty-eight million, twenty-one thousand, thirty-one".