1553033420131 has 4 divisors (see below), whose sum is σ = 1555433781552. Its totient is φ = 1550633058712.

The previous prime is 1553033420129. The next prime is 1553033420143. The reversal of 1553033420131 is 1310243303551.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1553033420131 - 2¹ = 1553033420129 is a prime.

It is a super-2 number, since 2×1553033420131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1553033420093 and 1553033420102.

It is not an unprimeable number, because it can be changed into a prime (1553033460131) 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, 1200179740 + ... + 1200181033.

It is an arithmetic number, because the mean of its divisors is an integer number (388858445388).

Almost surely, 2^{1553033420131} is an apocalyptic number.

1553033420131 is a deficient number, since it is larger than the sum of its proper divisors (2400361421).

1553033420131 is an equidigital number, since it uses as much as digits as its factorization.

1553033420131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400361420.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 1553033420131 its reverse (1310243303551), we get a palindrome (2863276723682).

The spelling of 1553033420131 in words is "one trillion, five hundred fifty-three billion, thirty-three million, four hundred twenty thousand, one hundred thirty-one".