1013201551 has 4 divisors (see below), whose sum is σ = 1045885504. Its totient is φ = 980517600.

The previous prime is 1013201549. The next prime is 1013201573. The reversal of 1013201551 is 1551023101.

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

It is not a de Polignac number, because 1013201551 - 2¹ = 1013201549 is a prime.

It is a super-4 number, since 4×1013201551⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013201251) 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, 16341930 + ... + 16341991.

It is an arithmetic number, because the mean of its divisors is an integer number (261471376).

Almost surely, 2^1013201551 is an apocalyptic number.

1013201551 is a deficient number, since it is larger than the sum of its proper divisors (32683953).

1013201551 is an equidigital number, since it uses as much as digits as its factorization.

1013201551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32683952.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1013201551 is about 31830.8270549164. The cubic root of 1013201551 is about 1004.3812932355.

Adding to 1013201551 its reverse (1551023101), we get a palindrome (2564224652).

The spelling of 1013201551 in words is "one billion, thirteen million, two hundred one thousand, five hundred fifty-one".